PIC18F27J53T-I/SO Microchip Technology, PIC18F27J53T-I/SO Datasheet - Page 191

• Manufacturer Part Number: PIC18F27J53T-I/SO
• Description: 28-pin, USB, 128KB Flash, 4KB RAM, 12 MIPS, 12-bit ADC, NanoWatt XLP 28 SOIC .30
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F27J53T-I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, LIN, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Ram Size: 3.8K x 8
• Voltage - Supply (vcc/vdd): 2.15 V ~ 3.6 V
• Data Converters: A/D 10x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3.8 KB
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 8
• Operating Supply Voltage: 2.15 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

11.2.5
In the Addressable Parallel Slave Port mode
(
two extra inputs, PMA<1:0>, which are the address
lines 1 and 0. This makes the 4-byte buffer space
directly addressable as fixed pairs of read and write
buffers. As with Legacy Buffered mode, data is output
from PMDOUT1L, PMDOUT1H, PMDOUT2L and
PMDOUT2H, and is read in PMDIN1L, PMDIN1H,
PMDIN2L and PMDIN2H. Table 11-1 provides the
buffer addressing for the incoming address to the input
and output registers.
FIGURE 11-6:
11.2.5.1
When chip select is active and a read strobe occurs
(PMCSx = 1 and PMRD = 1), the data from one of the
four output bytes is presented onto PMD<7:0>. Which
byte is read depends on the 2-bit address placed on
ADDR<1:0>. Table 11-1 provides the corresponding
FIGURE 11-7:
 2010 Microchip Technology Inc.
PMMODEH<1:0> = 01), the module is configured with
PMD<7:0>
PMA<1:0>
PMCSx
PMWR
Master
PMPIF
PMD<7:0>
PMA<1:0>
PMRD
OBE
ADDRESSABLE PARALLEL SLAVE
PORT MODE
PMCS1
PMWR
PMRD
READ FROM SLAVE PORT
Address Bus
Data Bus
Control Lines
PARALLEL MASTER/SLAVE CONNECTION ADDRESSED BUFFER EXAMPLE
PARALLEL SLAVE PORT READ WAVEFORMS
Preliminary
PMD<7:0>
PMA<1:0>
PMCS1
PMRD
PMWR
PIC18F47J53 FAMILY
TABLE 11-1:
output registers and their associated address. When an
output buffer is read, the corresponding OBxE bit is set.
The OBxE flag bit is set when all the buffers are empty.
If any buffer is already empty, OBxE = 1, the next read
to that buffer will generate an OBUF event.
Address
Decode
Write
PMA<1:0>
00
01
10
11
PIC18F Slave
PMDOUT1L (0)
PMDOUT1H (1)
PMDOUT2H (3)
PMDOUT2L (2)
|
Q4
SLAVE MODE BUFFER
ADDRESSING
PMDOUT2H((3)
PMDOUT1H (1)
PMDOUT1L (0)
PMDOUT2L (2)
|
Register
Q1
(Buffer)
Output
Address
Decode
Read
|
Q2
PMDIN1H (1)
PMDIN2H (3)
PMDIN1L (0)
PMDIN2L (2)
|
DS39964B-page 191
Q3
Input Register
PMDIN1H (1)
PMDIN2H (3)
PMDIN1L (0)
PMDIN2L (2)
(Buffer)
|
Q4