Z8018006VSC Zilog, Z8018006VSC Datasheet - Page 63

• Manufacturer Part Number: Z8018006VSC
• Description: IC 6MHZ Z180 CMOS ENH MPU 68PLCC
• Manufacturer: Zilog

Specifications of Z8018006VSC

• Processor Type: Z180
• Features: 8-Bit, Enhanced Z80 Megacell
• Speed: 6MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 68-LCC (J-Lead)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3008

DMA Byte Count Register Channel 0
DMA Byte Count Register
PS014004-1106
DMA Byte Count Register Channel 0L
Note:
Note:
Table 15. DMA Transfer Requests
(
ister contains 16 bits and may specify up to 64 KB transfers. When one byte is transferred,
the register is decremented by 1. If n bytes are transferred, n must be stored before the DMA
operation.
Mnemonic BCR0L: Address 26h
A19*
X
X
X
X
BCRO: I/O ADDRESS = 26h to 27h
In the
package version of CP-68.
All DMA Count Register channels are undefined during
A18
X
X
X
X
R1
Figure 54. DMA Byte Count Register 0L
7
and Z Mask, these DMA registers are expanded from 4 bits to 3 bits in the
A17
0
0
1
1
6
A16
0
1
0
1
5
4
) specifies the number of bytes to be transferred. This reg-
DMA Transfer Request
DREQ0
TDR0 (ASCI0)
TDR1 (ASCI1)
Not Used
3
Counting Data
2
1
0
RESET
Microprocessor Unit
.
Architecture
Z80180
57