Register Descriptions; I 2 C Bus Data Register (Icdr) - Hitachi H8/3664 Hardware Manual

15.2

Register Descriptions

2
15.2.1 I C Bus Data Register (ICDR)
Bit
ICDR7
Initial value
Read/Write
• ICDRR
Bit
ICDRR7
Initial value
Read/Write
• ICDRS
Bit
ICDRS7
Initial value
Read/Write
• ICDRT
Bit
ICDRT7
Initial value
Read/Write
• TDRE, RDRF (internal flags)
Bit
Initial value
Read/Write
7 6
ICDR6 ICDR5
— —
R/W R/W
7 6
ICDRR6 ICDRR5
— —
R R
7 6
ICDRS6 ICDRR5
— —
— —
7 6
ICDRT6 ICDRT5
— —
W W
5 4
ICDR4 ICDR3
— —
R/W R/W
5 4
ICDRR4 ICDRR3
— —
R R
5 4
ICDRS4 ICDRS3
— —
— —
5 4
ICDRT4 ICDRT3
— —
W W
3 2
ICDR2 ICDR1
— —
R/W R/W
3 2
ICDRR2 ICDRR1
— —
R R
3 2
ICDRS2 ICDRS1
— —
— —
3 2
ICDRT2 ICDRT1
— —
W W
TDRE
1 0
ICDR0
— —
R/W R/W
1 0
ICDRR0
— —
R R
1 0
ICDRS0
— —
— —
1 0
ICDRT0
— —
W W
— —
RDRF
0 0
— —
303