z80180 ZiLOG Semiconductor, z80180 Datasheet - Page 67

• Manufacturer Part Number: z80180
• Description: Microprocessor Unit
• Manufacturer: ZiLOG Semiconductor

IAR MS Byte Register (IARIB: I/O Address 2Dh)
DMA I/O Address Register Channel 1L
DMA I/O Address Register Channel 1H
PS014004-1106
DMA I/O Address Register Channel 1L
DMA I/O Address Register Channel 1H
Bit
Mnemonic IAR1L (Address 2B)
Mnemonic IAR1H (Address 2C)
A/T
F
7
Figure 61. IAR MS Byte Register (IARIB: I/O Address 2Dh
Figure 63. DMA I/O Address Register Channel 1H
Figure 62. DMA I/O Address Register Channel 1L
A/T
6
C
—
—
7
7
—
—
6
6
5
—
—
5
5
—
—
4
—
—
4
4
—
DMA I/O Address Channel 1H
DMA I/O Channel 1L Address
—
DREQ
3
T
3
OUT
3
—
—
2
2
—
—
2
1
1
Req 1 Sel
—
—
0
0
1
0
Microprocessor Unit
Architecture
Z80180
61