HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 418

• Manufacturer Part Number: HD64570
• Description: Serial Communications Adaptor
• Manufacturer: HITACHI [Hitachi Semiconductor]

Register
Interrupt Control
Interrupt Vector Register
(IVR)
Not used
Interrupt Modified Vector
Register (IMVR)
Not used
Not used
Not used
Rev. 0, 07/98, page 402 of 453
CPU
Mode
0, 1
1AH
1BH
1CH
1DH
1EH
1FH
Address
CPU
Mode
2, 3
1BH
1AH
1DH
1CH
1FH
1EH
Remarks
Read/Write
Initial value
Read/Write
Initial value
Bit name
Bit name
IMVR7 IMVR6
IVR7
R/W
R/W
7
0
7
0
IVR6
R/W
R/W
6
0
6
0
IVR5
R/W
—
5
5
—
0
0
Modified vector address
Fixed vector address
IVR4
R/W
Hardware-generated code
4
—
4
—
0
0
IVR3
R/W
—
—
3
0
3
0
IVR2
R/W
—
2
—
0
2
0
R/W
IVR1 IVR0
—
—
1
0
1
0
R/W
—
—
0
0
0
0