MC9S08DZ60 Datasheet, PDF (200/396 Pages) Freescale Semiconductor, Inc – Microcontrollers

Inter-Integrated Circuit (S08IICV2)
11.1.3 Block Diagram
Figure 11-4 is a block diagram of the IIC.
ADDRESS
ADDR_DECODE
INTERRUPT
DATA BUS
DATA_MUX
CTRL_REG
FREQ_REG
ADDR_REG
STATUS_REG
DATA_REG
INPUT
SYNC
CLOCK
CONTROL
START
STOP
ARBITRATION
CONTROL
IN/OUT
DATA
SHIFT
REGISTER
ADDRESS
COMPARE
SCL
SDA
Figure 11-4. IIC Functional Block Diagram
11.2 External Signal Description
This section describes each user-accessible pin signal.
11.2.1 SCL — Serial Clock Line
The bidirectional SCL is the serial clock line of the IIC system.
11.2.2 SDA — Serial Data Line
The bidirectional SDA is the serial data line of the IIC system.
MC9S08DZ60 Series Data Sheet, Rev. 1 Draft E
200
PRELIMINARY
Freescale Semiconductor
Subject to Change