Panasonic MN101C77C - Manual (Page 429)

XIII - 3 Overview
Chapter 13 Serial Interface 4
13-1-2 Block Diagram
„ Serial interface 4 Block Diagram
Figure 13-1-1 Serial interface 4 Block Diagram
P01/SDA P53/SDA
M U X
Transmission/reception Shift register
Read/Write
-
ACKVALID I2CBSY SLVBSY RSTRT STRT
I2CINT
WRS
SC4STR
0 7
10 /
{
ck
Read
Communication mode selection circuit
Addressing circuit
Address compare circuit
P02/SCL P54/SCL
M U X
Start/stop detection circuit
Bus busy detection circuit
I2CAD8 I2CAD9 I2CGEM I2CADM
I2CPSEL
- -
SELI2C SC4AD1
0 7
{
I2CAD0 I2CAD1 I2CAD3 I2CAD2 I2CAD4 I2CAD5 I2CAD6 I2CAD7 SC4AD0
0 7
IRQ control circuit
{
Match
{
SC4IRQ
Transmission buffer SC4TXB
Reception Buffer SC4RXB