MC68306EH16B Freescale Semiconductor, MC68306EH16B Datasheet - Page 126

• Manufacturer Part Number: MC68306EH16B
• Description: IC MPU INTEGRATED 16MHZ 132-PQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68306EH16B

• Processor Type: M683xx 32-Bit
• Speed: 16MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 132-MQFP, 132-PQFP
• Controller Family/series: 68K
• Core Size: 32 Bit
• Cpu Speed: 16.7MHz
• No. Of Timers: 1
• Embedded Interface Type: UART
• Digital Ic Case Style: PQFP
• Supply Voltage Range: 4.75V To 5.25V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

shown in Figure 6-9. The mode, status, command, and clock-select registers are
duplicated for each channel to provide independent operation and control.
In the registers discussed in the following pages, the numbers above the register
description represent the bit position in the register. The register description contains the
mnemonic for the bit. The values shown below the register description are the values of
those register bits after a hardware reset. A value of U indicates that the bit value is
unaffected by reset. The read/write status is shown in the last line.
6.4.1.1 MODE REGISTER 1 (DUMR1). DUMR1 controls some of the serial module
configuration. This register can be read or written at any time. It is accessed when the
6-18
FFFFF7E1
FFFFF7E3
FFFFF7E5
FFFFF7E7
FFFFF7E9
FFFFF7EB
FFFFF7ED
FFFFF7EF
FFFFF7FB
FFFFF7FD
FFFFF7FF
FFFFF7F1
FFFFF7F3
FFFFF7F5
FFFFF7F7
FFFFF7F9
Address
NOTES:
1. This address is used for factory testing and should not be read. Reading this location wiill result in undesired effects and
2. Address-triggered commands
possible incorrect transmission or reception of characters. Register contents may also be changed.
COUNTER MODE:CURRENT MSB OF COUNTER
COUNTER MODE:CURRENT LSB OF COUNTER
INPUT PORT CHANGE REGISTER (DUIPCR)
All serial module registers are only accessible as bytes. The
contents of the mode registers (DUMR1 and DUMR2), clock-
select register (DUCSR), and the auxiliary control register
(DUACR) bit 7 should only be changed after the
receiver/transmitter is issued a software RESET command—
i.e., channel operation must be disabled. Care should also be
taken if the register contents are changed during
receiver/transmitter operations, as undesirable results may be
produced.
INTERRUPT VECTOR REGISTER (DUIVR)
INTERRUPT STATUS REGISTER (DUISR)
MODE REGISTER A (DUMR1A, DUMR2A)
MODE REGISTER B (DUMR1B, DUMR2B)
RECEIVER BUFFER A (DURBA)
STATUS REGISTER B (DUSRB)
RECEIVER BUFFER B (DURBB)
INPUT PORT REGISTER (DUIP)
START COUNTER COMMAND 2
STATUS REGISTER A (DUSRA)
STOP COUNTER COMMAND 2
Register Read (R/W = 1)
Figure 6-9. Serial Module Programming Model
DO NOT ACCESS 1
DO NOT ACCESS 1
Freescale Semiconductor, Inc.
For More Information On This Product,
MC68306 USER'S MANUAL
Go to: www.freescale.com
NOTE
OUTPUT PORT CONFIGURATION REGISTER
AUXILIARY CONTROL REGISTER (DUACR)
INTERRUPT VECTOR REGISTER (DUIVR)
MODE REGISTER A (DUMR1A, DUMR2A)
CLOCK-SELECT REGISTER A (DUCSRA)
MODE REGISTER B (DUMR1B, DUMR2B)
CLOCK-SELECT REGISTER B (DUCSRB)
INTERRUPT MASK REGISTER (DUIMR)
COUNTER/TIMER LOWER REGISTER
COUNTER/TIMER UPPER REGISTER
OUTPUT PORT (DUOP) 2 BIT RESET
TRANSMITTER BUFFER A (DUTBA)
TRANSMITTER BUFFER B (DUTBB)
COMMAND REGISTER A (DUCRA)
COMMAND REGISTER B (DUCRB)
OUTPUT PORT (DUOP) 2 BIT SET
Register Write (R/W = 0)
(DUOPCR)
MOTOROLA