Microcontroller Connections To The 41210 Bridge; 41210 Bridge Microcontroller Block Diagram; 41210 Bridge Microcontroller Connections - Intel 41210 Design Manual

Figure 1. 41210 Bridge Microcontroller Block Diagram
2.4.2

Microcontroller Connections to the 41210 Bridge

The following diagram shows the SMB interface from the 41210 Bridge to the microcontroller.
Figure 2. 41210 Bridge Microcontroller Connections
Intel
Bridge
Intel® 41210 Serial to Parallel PCI Bridge Design Guide
Microcontroller
Configuration
Register
Data
3.3 V
fi 41210
SMBDAT
SMBCLK
CFGRETRY
CFG_RST_N
SMBus 2.0
fi
Intel 41210 Bridge
Configuration
Register
Address Space
PIC16F876A
SMDAT
SDI / SDA
SMCLK
SCK / SCL
OSC2 / CLKOUT
CFG_RETRY
RC1
CFG_RESET
RBO / INT
OSC1 / CLKIN
Introduction
B2707-01
20 MHz
22 pF 22 pF
B2708-01
11