I2C_F field descriptions (continued)
Field
Description
MULT
ICR
Hold times (μs)
SDA
SCL Start
SCL Stop
0h
18h
1.125
4.750
5.125
18.3.3 I2C Control Register 1 (I2C_C1)
Address: 3070h base + 2h offset = 3072h
Bit
7
6
5
4
3
2
1
0
Read
0
Write
Reset
0
0
0
0
0
0
0
0
I2C_C1 field descriptions
Field
Description
7
IICEN
I2C Enable
Enables I2C module operation.
0
Disabled
1
Enabled
6
IICIE
I2C Interrupt Enable
Enables I2C interrupt requests.
0
Disabled
1
Enabled
5
MST
Master Mode Select
When MST is changed from 0 to 1, a START signal is generated on the bus and master mode is selected.
When this bit changes from 1 to 0, a STOP signal is generated and the mode of operation changes from
master to slave.
0
Slave mode
1
Master mode
4
TX
Transmit Mode Select
Selects the direction of master and slave transfers. In master mode this bit must be set according to the
type of transfer required. Therefore, for address cycles, this bit is always set. When addressed as a slave
this bit must be set by software according to the SRW bit in the status register.
0
Receive
1
Transmit
Table continues on the next page...
Memory map/register definition
MC9S08PT60 Reference Manual, Rev. 4, 08/2014
512
Freescale Semiconductor, Inc.
Содержание MC9S08PT60
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