PIC18F45J50-I/SOSQTP 데이터 시트보기 (PDF) - Microchip Technology

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PIC18F45J50-I/SOSQTP

28/44-Pin, Low-Power, High-Performance USB Microcontrollers with nanoWatt XLP Technology

Microchip Technology 

PIC18F46J50 FAMILY

11.2.5.2 WRITE TO SLAVE PORT

When chip select is active and a write strobe occurs

(PMCS = 1 and PMWR = 1), the data from PMD<7:0>

is captured into one of the four input buffer bytes.

Which byte is written depends on the 2-bit address

placed on ADDRL<1:0>.

Table 11-1 provides the corresponding input registers

and their associated address.

When an input buffer is written, the corresponding IBxF

bit is set. The IBF flag bit is set when all the buffers are

written. If any buffer is already written (IBxF = 1), the

next write strobe to that buffer will generate an OBUF

event and the byte will be discarded.

FIGURE 11-8:

PMCS

PMWR

PMRD

PMD<7:0>

PARALLEL SLAVE PORT WRITE WAVEFORMS

| Q4 | Q1 | Q2 | Q3 | Q4

PMA<1:0>

IBF

PMPIF

DS39931D-page 182

 2011 Microchip Technology Inc.

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