LM8322EVALKIT National Semiconductor, LM8322EVALKIT Datasheet - Page 3

• Manufacturer Part Number: LM8322EVALKIT
• Description: BOARD EVALUATION LM8322
• Manufacturer: National Semiconductor

Specifications of LM8322EVALKIT

• Main Purpose: Interface, Special Purpose
• Embedded: No
• Utilized Ic / Part: LM8322
• Primary Attributes: Mobile I/O Companion with Key-Scan, I/O Expansion, PWM, Access.bus Host
• Secondary Attributes: Board has MCU for USB to PC GUI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1.0 General Description ......................................................................................................................... 1
2.0 Features ........................................................................................................................................ 1
3.0 Applications .................................................................................................................................... 1
4.0 Block Diagram ................................................................................................................................ 1
5.0 Ordering Information ........................................................................................................................ 2
6.0 Pin Assignments ............................................................................................................................. 2
7.0 Signal Descriptions .......................................................................................................................... 5
8.0 Application Example ........................................................................................................................ 7
9.0 Clocks ........................................................................................................................................... 8
10.0 Reset ......................................................................................................................................... 10
11.0 Halt Mode ................................................................................................................................... 13
12.0 Keypad Interface ......................................................................................................................... 14
13.0 General-Purpose I/O Ports ............................................................................................................ 16
14.0 PWM Output Generation ............................................................................................................... 18
15.0 Digital Multiplexers ....................................................................................................................... 24
16.0 Host Interface ............................................................................................................................. 25
17.0 Host Commands .......................................................................................................................... 28
7.1 TERMINATION OF UNUSED SIGNALS ........................................................................................... 6
8.1 FEATURES .................................................................................................................................. 7
9.1 INTERNAL EXECUTION CYCLE ..................................................................................................... 8
9.2 BUFFERED CLOCK ...................................................................................................................... 8
9.3 CLOCK CONFIGURATION ............................................................................................................. 9
10.1 EXTERNAL RESET ................................................................................................................... 10
10.2 POWER-ON RESET (POR) ........................................................................................................ 10
10.3 PIN CONFIGURATION AFTER RESET ........................................................................................ 10
10.4 DEVICE CONFIGURATION AFTER RESET ................................................................................. 11
10.5 CONFIGURATION INPUTS ........................................................................................................ 11
10.6 INITIALIZATION ........................................................................................................................ 11
10.7 INITIALIZATION EXAMPLE ........................................................................................................ 13
11.1 ACCESS.bus ACTIVITY ............................................................................................................. 13
12.1 EVENT CODE ASSIGNMENT ..................................................................................................... 14
12.2 KEYPAD SCAN CYCLES ........................................................................................................... 14
12.3 EXAMPLE KEYPAD CONFIGURATION ....................................................................................... 15
13.1 USING THE CONFIG_X PINS FOR GPIO .................................................................................... 17
13.2 GPIO TIMING ........................................................................................................................... 17
14.1 COMMAND QUEUE .................................................................................................................. 18
14.2 PWM TIMER OPERATION ......................................................................................................... 18
14.3 PWM SCRIPT COMMANDS ....................................................................................................... 19
14.4 RAMP COMMAND .................................................................................................................... 20
14.5 SET_PWM COMMAND .............................................................................................................. 20
14.6 GO_TO_START COMMAND ...................................................................................................... 20
14.7 BRANCH COMMAND ................................................................................................................ 20
14.8 END COMMAND ....................................................................................................................... 21
14.9 TRIGGER COMMAND ............................................................................................................... 21
14.10 PWM SCRIPT EXAMPLE ......................................................................................................... 21
14.11 SELECTABLE SCRIPT EXAMPLE ............................................................................................. 23
16.1 START AND STOP CONDITIONS ............................................................................................... 25
16.2 CONTINUOUS COMMAND STRINGS ......................................................................................... 25
16.3 DEVICE ADDRESS ................................................................................................................... 25
16.4 HOST WRITE COMMANDS ....................................................................................................... 25
16.5 HOST READ COMMANDS ......................................................................................................... 26
16.6 INTERRUPTS ........................................................................................................................... 26
16.7 INTERRUPT CODE ................................................................................................................... 27
16.8 ERROR CODE .......................................................................................................................... 27
16.9 WAKE-UP FROM HALT MODE ................................................................................................... 27
17.1 READ_ID COMMAND ................................................................................................................ 29
17.2 WRITE_CFG COMMAND ........................................................................................................... 29
17.3 READ_INT COMMAND .............................................................................................................. 30
17.4 RESET COMMAND ................................................................................................................... 30
12.2.1 Timing Parameters ................................................................................................................ 15
12.2.2 Multiple Key Pressings ........................................................................................................... 15
14.10.1 PWM Channel 0 Script ......................................................................................................... 22
14.10.2 PWM Channel 1 Script ......................................................................................................... 22
14.10.3 PWM Channel 2 Script ......................................................................................................... 22
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