tmp89fm42a TOSHIBA Semiconductor CORPORATION, tmp89fm42a Datasheet - Page 296

• Manufacturer Part Number: tmp89fm42a
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

RA002
18.3
Low power consumption register 1
POFFCR1
(0x0F75)
is not being used.
Note 1: When SBI0EN is cleared to "0", the clock supply to the serial bus interface is stopped. At this time, the data written
The following registers are used to control the serial bus interface and monitor the operation status.
In addition, the serial bus interface has low power consumption registers that save power when the serial bus interface
Control
・ Serial bus interface control register 1 (SBI0CR1)
・ Serial bus interface control register 2 (SBI0CR2)
・ Serial bus interface status register 2 (SBI0SR2)
・ Serial bus interface data buffer register (SBI0DBR)
・ I
UART1EN
UART0EN
2
to the serial bus interface control registers is invalid. When the serial bus interface is used, set SBI0EN to "1" and
then write the data to the serial bus interface control registers.
SBI0EN
Read/Write
C bus address register (I2C0AR)
Bit Symbol
After reset
I2C0 control
UART1 control
UART0 control
R/W
7
0
-
R/W
6
0
-
R/W
5
0
Page 277
-
0
1
0
1
0
1
Disable
Enable
Disable
Enable
Disable
Enable
SBI0EN
R/W
4
0
R/W
3
0
-
R/W
2
0
-
UART1EN
R/W
1
0
TMP89FM42A
UART0EN
R/W
0
0