HD6432621 Hitachi, HD6432621 Datasheet - Page 997

• Manufacturer Part Number: HD6432621
• Description: (HD64F262x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

SMR0—Serial Mode Register 0
Bit
Initial value
Read/Write
GSM mode
Note:
0 Normal smart card interface mode operation
1
:
:
:
• TEND flag generation 12.5 etu (11.5 etu in block transfer mode) after beginning of start bit
• Clock output on/off control only
GSM mode smart card interface mode operation
• TEND flag generation 11.0 etu after beginning of start bit
• High/low fixing control possible in addition to clock output on/off control (set by SCR)
etu: Elementary Time Unit (time for transfer of 1 bit)
R/W
GM
7
0
Block transfer mode
0 Normal smart card interface mode operation
1
• Error signal transmission/detection and automatic data retransmission performed
• TXI interrupt generated by TEND flag
• TEND flag set 12.5 etu after start of transmission (11.0 etu in GSM mode)
Block transfer mode operation
• Error signal transmission/detection and automatic data retransmission not performed
• TXI interrupt generated by TDRE flag
• TEND flag set 11.5 etu after start of transmission (11.0 etu in GSM mode)
BLK
R/W
6
0
Parity enable
Note: When the smart card interface is used, be sure to make the 1 setting.
0 Parity bit addition and checking disabled
1
Parity bit addition and checking enabled
R/W
PE
5
0
Parity mode
Notes: *1 When even parity is set, parity bit addition is performed in
0 Even parity
1
Odd parity
*2 When odd parity is set, parity bit addition is performed in
R/W
O/E
transmission so that the total number of 1 bits in the transmit
character plus the parity bit is even.
In reception, a check is performed to see if the total number
of 1 bits in the receive character plus the parity bit is even.
transmission so that the total number of 1 bits in the transmit
character plus the parity bit is odd.
In reception, a check is performed to see if the total number
of 1 bits in the receive character plus the parity bit is odd.
4
0
*2
*1
H'FF78
BCP1
R/W
3
0
Basic clock pulse
0
1
0 32 clock periods
1
0
1
BCP0
64 clock periods
372 clock periods
256 clock periods
R/W
2
0
Smart Card Interface
CKS1
R/W
1
0
Clock select
0
1
0 ø clock
1
0
1
ø/4 clock
ø/16 clock
ø/64 clock
CKS0
R/W
0
0
953