Z8018008VEC Zilog, Z8018008VEC Datasheet - Page 80
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Z8018008VEC
Manufacturer Part Number
Z8018008VEC
Description
IC 8MHZ Z180 CMOS ENH MPU 68PLCC
Manufacturer
Zilog
Datasheet
1.Z8018006PSG.pdf
(85 pages)
Specifications of Z8018008VEC
Processor Type
Z180
Features
8-Bit, Enhanced Z80 Megacell
Speed
8MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
68-LCC (J-Lead)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
269-3012
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
Z8018008VEC
Manufacturer:
ZILOG
Quantity:
5 530
Company:
Part Number:
Z8018008VEC
Manufacturer:
ZILOG
Quantity:
6 250
Part Number:
Z8018008VEC00TR
Manufacturer:
ZILOG
Quantity:
20 000
I/O Control Register (ICR)
I/O Control Register (ICR: I/O Address = 3Fh)
PS014004-1106
Bit
Note:
ICR
the
IOA7, 6: I/O Address Relocation (bits 7,6)
IOA7
IOSTP:
I/O operation resumes when
IOSTOP
IOA7
R/W
allows relocating of the internal I/O addresses.
7
and
IOA7– IOA6 = 0 1
IOA7–IOA6 = 0 0
IOA7–IOA6 = 1 0
Figure 78. I/O Control Register (ICR: I/O Address = 3Fh)
The high-order 8 bits of 16-bit internal I/O address are always 0.
cleared to
IOA7–IOA6 = 1 1
IOSTOP
IOA6
IOA6
mode
R/W
6
relocate internal I/O as illustrated in
Mode (bit 5)—
(Figure
0
Figure 79. I/O Address Relocation
IOSTP
during
R/W
5
78).
RESET
IOSTOP
4
—
.
IOSTOP
is reprogrammed or
3
—
mode is enabled when
2
—
00FFh
00C0h
00BFh
0080h
0070h
0040h
003Fh
0000h
ICR
Figure
1
—
also controls enabling/disabling of
RESET
79.
0
—
to
IOSTP
Microprocessor Unit
0
.
is set to
IOA7
and
Architecture
1
. Normal
Z80180
IOA6
are
74