mcf51ac256a Freescale Semiconductor, Inc, mcf51ac256a Datasheet - Page 275
mcf51ac256a
Manufacturer Part Number
mcf51ac256a
Description
Mcf51ac Flexis
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MCF51AC256A.pdf
(566 pages)
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12.1.3
Figure 12-1
12.2
This section describes each user-accessible pin signal.
12.2.1
The bidirectional SCL is the serial clock line of the IIC system.
12.2.2
The bidirectional SDA is the serial data line of the IIC system.
12.3
This section consists of the IIC register descriptions in address order.
Freescale Semiconductor
External Signal Description
Register Definition
Block Diagram
SCL — Serial Clock Line
SDA — Serial Data Line
is a block diagram of the IIC.
MCF51AC256 ColdFire Integrated Microcontroller Reference Manual, Rev. 5
CTRL_REG
ADDR_DECODE
Control
Address
Clock
Input
Sync
Figure 12-1. IIC Functional Block Diagram
FREQ_REG
SCL
Arbitration
ADDR_REG
Control
Start
Stop
SDA
STATUS_REG
Interrupt
Compare
Register
Address
In/Out
Data
Shift
DATA_MUX
DATA_REG
Data Bus
Inter-Integrated Circuit (IICV2)
12-3
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