Z32F0641MCU Datasheet, PDF (139/205 Pages) Zilog, Inc. – High Performance low-power Cortex-M3 core

Z32F0641 Product Specification
Pin Description
Pin Name
SCL0
SDA0
Type
I/O
I/O
Table 14.1 I²C Interface External Pins
Description
I²C channel 0 Serial clock bus line (open-drain)
I²C channel 0 Serial data bus line (open-drain)
I2C Interface
Registers
The base address of I²C0 is 0x4000_A000. The register map is described in Table 14.3.
Table 14.2 I²C Interface Base Address
Name
I²C0
Base Address
0x4000_A000
Name
ICn.DR
ICn.SR
ICn.SAR
ICn.CR
ICn.SCLL
ICn.SCLH
ICn.SDH
Offset
0x00
0x08
0x0C
0x14
0x18
0x1C
0x20
Table 14.3 I²C Register Map
Type
RW
R, RW
RW
RW
RW
RW
RW
Description
I²C0 Data Register
I²C0 Status Register
I²C0 Slave Address Register
I²C0 Control Register
I²C0 SCL LOW duration Register
I²C0 SCL HIGH duration Register
I²C0 SDA Hold Register
Reset
Value
0xFF
0x00
0x00
0x00
0xFFFF
0xFFFF
0x7F
PS034404-0417
PRELIMINARY
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