HD6433640 HITACHI [Hitachi Semiconductor], HD6433640 Datasheet - Page 289

• Manufacturer Part Number: HD6433640
• Description: H8/3644 Series Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

Pin Configuration
Table 10.2 shows the SCI1 pin configuration.
Table 10.2 Pin Configuration
Name
SCI1 clock pin
SCI1 data input pin
SCI1 data output pin
Register Configuration
Table 10.3 shows the SCI1 register configuration.
Table 10.3 SCI1 Registers
Name
Serial control register 1
Serial control status register 1
Serial data register U
Serial data register L
Abbrev.
SCK
SI
SO
Abbrev.
SCR1
SCSR1
SDRU
SDRL
1
1
1
I/O
I/O
Input
Output
R/W
R/W
R/W
R/W
R/W
Function
SCI1 clock input or output
SCI1 receive data input
SCI1 transmit data output
Initial Value
H'00
H'9C
Not fixed
Not fixed
Address
H'FFA0
H'FFA1
H'FFA2
H'FFA3
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