TMP91CP27 Datasheet, PDF (174/246 Pages) Toshiba Semiconductor – Original CMOS 16-Bit Microcontroller

TMP91CP27
(14) Software reset function
The software reset function is used to initialize the SBI circuit, when SBI is rocked
by external noises, etc.
An internal reset signal pulse can be generated by setting SBI0CR2<SWRST1:0> to
“10” and “01”. This initializes the SBI circuit internally. All command (except
SBI0CR2<SBIM1:0>) registers and status registers are initialized as well.
SBI0CR1<SWRMON> is automatically set to “1” after the SBI circuit has been
initialized.
(15) Serial bus interface data buffer register (SBI0DBR)
The received data can to read and transmission data can to write by reading or
writing SBI0DBR.
In the master mode, after the start condition is generated the slave address and the
direction bit are set in this register.
(16) I²C bus address register (I2C0AR)
I2C0AR<SA6:0> is used to set the slave address when the TMP91CP27 functions as
a slave device.
The slave address outputted from the master device is recognized by setting the
I2C0AR<ALS> to “0”. The data format is the addressing format. When the slave
address is not recognized at the <ALS> = “1”, the data format is the free data format.
(17) Baud rate register (SBI0BR1)
Write “1” to SBI0BR1<P4EN> before operation commences.
(18) Setting register for IDLE2 mode operation (SBI0BR0)
SBI0BR0<I2SBI0> is the register setting operation/stop during IDLE2 mode.
Therefore, setting <I2SBI0> is necessary before the HALT instruction is executed.
91CP27-172
2003-11-05