tmp88cs34ng TOSHIBA Semiconductor CORPORATION, tmp88cs34ng Datasheet - Page 86

• Manufacturer Part Number: tmp88cs34ng
• Description: Cmos 8-bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

fc/2
fc/4
2.9
2.9.1
Source Clock
Generator
Canceller
Noise
Serial Bus Interface (SBI-ver. D)
clocked-synchronous 8-bit serial bus interface and an I
serial bus interface pins are selectively used as either channel 0 or channel 1.
(SCL0)/P51 (SCL1) in the I
the clocked-synchronous 8-bit SIO mode.
interface pins, set the P3/P5 output latches of these pins to “1”. When not used as serial bus
interface pins, the P3/P5 port is used as a normal I/O port.
Note 1: When P3 and P5 is used as serial bus interface pins, P35, P34, P51 and P50 should be set
Note 2: The I
SBI Control Register B/
SBI Status Register
The TMP88CS34/CP34 has a 1-channel serial bus interface which employs a
The serial interface is connected to external devices through P35 (SDA0)/P52 (SDA1) and P34
The serial bus interface pins are also used for the P3/P5 port. When used for serial bus
Configuration
SBICRB/
SBISR
as a sink open drain output by clearing PSELCR to “0”.
and the High Speed mode can not be used.
Control
I
Control
Divider
2
Clock
Clock
Sync.
C bus
SIO
+
2
C of TMP88CS34/CP34 can be used only in the Standard mode of I
I
Address Register
2
C bus
Transfer
Control
Circuit
I2CAR
Figure 2.9.1 Serial Bus Interface (SBI)
2
C bus mode; and through P53 (
SBI data
Buffer Register
88CS34-86
INTSBI Interrupt Request
SBIDBR
Register
Shift
SBI Control Register A
Data Control
SBICRA
I
Control
2
SIO
Data
2
C bus
C bus (a bus system by Philips). The
SCK1
), P52 (SO1) and P51 (SI1) in
Canceller
Noise
TMP88CS34/CP34
2
C. The Fast mode
Control
SCL
Output
SO
SI
SDA
SCK
Input/
2007-09-12
(SCL1/SI1)
(SDA1/SO1)
(SDA0)
(SCL0)
(
P53
P52
P51
P35
P34
SCK
)