HD6433045 HITACHI [Hitachi Semiconductor], HD6433045 Datasheet - Page 509

• Manufacturer Part Number: HD6433045
• Description: Hitachi Single-Chip Microcomputer
• Manufacturer: HITACHI [Hitachi Semiconductor]

14.1.3 Input/Output Pins
Table 14-1 lists the smart card interface pins.
Table 14-1 Smart Card Interface Pins
Name
Serial clock pin
Receive data pin
Transmit data pin
14.1.4 Register Configuration
The smart card interface has the internal registers listed in table 14-2. BRR, TDR, and RDR have
their normal serial communication interface functions, as described in section 13, Serial
Communication Interface.
Table 14-2 Registers
Address
H'FFB0
H'FFB1
H'FFB2
H'FFB3
H'FFB4
H'FFB5
H'FFB6
Notes: 1. Lower 16 bits of the address.
2. Only 0 can be written, to clear flags.
*1
Name
Serial mode register
Bit rate register
Serial control register
Transmit data register
Serial status register
Receive data register
Smart card mode register
Abbreviation
SCK
RxD
TxD
0
0
0
Abbreviation
SMR
BRR
SCR
TDR
SSR
RDR
SCMR
499
I/O
Output
Input
Output
Function
Clock output
Receive data input
Transmit data output
R/W
R/W
R/W
R/W
R/W
R/(W)
R
R/W
*2
Initial Value
H'00
H'FF
H'00
H'FF
F'84
H'00
H'F2