PIC18F85K22-I/PT Microchip Technology, PIC18F85K22-I/PT Datasheet - Page 125

• Manufacturer Part Number: PIC18F85K22-I/PT
• Description: IC, 8BIT MCU, PIC18F, 64MHZ, TQFP-80
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F85K22-I/PT

• Controller Family/series: PIC18
• No. Of I/o's: 69
• Eeprom Memory Size: 1KB
• Ram Memory Size: 2KB
• Cpu Speed: 64MHz
• No. Of Timers: 8
• Core Size: 8 Bit
• Program Memory Size: 32KB
• Core Processor: PIC
• Speed: 64MHz
• Connectivity: EBI/EMI, I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 24x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

8.6.1
Figure 8-1
mode for PIC18F87K22 family devices. This mode is
used for two separate 8-bit memories connected for
16-bit operation. This generally includes basic EPROM
and Flash devices. It allows table writes to byte-wide
external memories.
FIGURE 8-1:
 2009-2011 Microchip Technology Inc.
Note 1:
PIC18F87K22
2:
shows an example of 16-Bit Byte Write
16-BIT BYTE WRITE MODE
A<19:16>
AD<15:8>
AD<7:0>
Upper order address lines are used only for 20-bit address widths.
This signal only applies to table writes. See
WRH
WRL
ALE
OE
CE
(1)
16-BIT BYTE WRITE MODE EXAMPLE
373
373
Section 7.1 “Table Reads and Table
D<7:0>
A<19:0>
D<15:8>
PIC18F87K22 FAMILY
During a TBLWT instruction cycle, the TABLAT data is
presented on the upper and lower bytes of the
AD<15:0> bus. The appropriate WRH or WRL control
line is strobed on the LSb of the TBLPTR.
A<x:0>
D<7:0>
CE
OE
(MSB)
WR
(2)
Address Bus
Data Bus
Control Lines
Writes”.
D<7:0>
DS39960D-page 125
OE
A<x:0>
D<7:0>
CE
(LSB)
WR
(2)