PIC18C801-I/L Microchip Technology, PIC18C801-I/L Datasheet - Page 73

• Manufacturer Part Number: PIC18C801-I/L
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LDCC,84PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Cr

Specifications of PIC18C801-I/L

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 37
• Program Memory Type: ROMless
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 84-PLCC
• Processor Series: PIC18C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1.5 KB
• Interface Type: 3-Wire, I2C, SPI, USART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 47
• Number Of Timers: 1 x 16 bit
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: DV164005, ICE4000, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164310 - MODULE SKT FOR PM3 84PLCCXLT84L1 - SOCKET TRANSITION ICE 84PLCCAC174012 - MODULE SKT PROMATEII 84PLCC
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details
• Other names: PIC18C801-I/LR; PIC18C801-I/LR; PIC18C801I/L

6.0
PIC18C601/801 devices use two memory spaces: the
external program memory space and the data memory
space. Table Reads and Table Writes have been pro-
vided to move data between these two memory spaces
through an 8-bit register (TABLAT).
The operations that allow the processor to move data
between the data and external program memory
spaces are:
• Table Read (TBLRD)
• Table Write (TBLWT)
FIGURE 6-1:
FIGURE 6-2:
2001 Microchip Technology Inc.
TABLE READS/TABLE WRITES
Note 1: Table Pointer points to a byte in external program memory.
Instruction: TBLRD *
Note 1: Table Pointer points to a byte in external program memory.
Instruction: TBLWT *
TBLPTRU
TBLPTRU
TABLE READ OPERATION
TABLE WRITE OPERATION
Table Pointer
Table Pointer
TBLPTRH
TBLPTRH
Program Memory
(TBLPTR)
(1)
(1)
External
Program Memory
(TBLPTR)
TBLPTRL
Advance Information
TBLPTRL
External Program Memory
External Program Memory
Table Read operations retrieve data from external pro-
gram memory and place it into the data memory space.
Figure 6-1 shows the operation of a Table Read with
program and data memory.
Table Write operations store data from the data mem-
ory space into external program memory. Figure 6-2
shows the operation of a Table Write with external pro-
gram and data memory.
Table operations work with byte entities. A table block
containing data is not required to be word aligned, so a
table block can start and end at any byte address. If a
Table Write is being used to write an executable pro-
gram to program memory, program instructions must
be word aligned.
PIC18C601/801
Table Latch (8-bit)
Table Latch (8-bit)
TABLAT
TABLAT
DS39541A-page 73