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Intel® 41210 Serial to Parallel PCI Bridge Design Guide 11
Introduction
2.4.2 Microcontroller Connections to the 41210 Bridge
The following diagram shows the SMB interface from the 41210 Bridge to the microcontroller.
Figure 1. 41210 Bridge Microcontroller Block Diagram
B2707-01
Configuration
Register
Address Space
Intel
fi
41210 Bridge
SMBus 2.0
Configuration
Register
Data
Microcontroller
Figure 2. 41210 Bridge Microcontroller Connections
B2708-01
Intel
fi
41210
Bridge
SMDAT
3.3 V
SMBDAT
SMBCLK
CFGRETRY
CFG_RST_N
PIC16F876A
SDI / SDA
SCK / SCL
RC1
RBO / INT
OSC2 / CLKOUT
OSC1 / CLKIN
20 MHz
22 pF 22 pF
SMCLK
CFG_RETRY
CFG_RESET