Z85C3010PSG Zilog, Z85C3010PSG Datasheet - Page 198
Z85C3010PSG
Manufacturer Part Number
Z85C3010PSG
Description
IC 10MHZ Z8500 CMOS SCC 40-DIP
Manufacturer
Zilog
Series
SCCr
Specifications of Z85C3010PSG
Processor Type
Z80
Features
Error Detection and Multiprotocol Support
Speed
10MHz
Voltage
5V
Mounting Type
Through Hole
Package / Case
40-DIP (0.620", 15.75mm)
Cpu Speed
8MHz
Digital Ic Case Style
DIP
No. Of Pins
40
Supply Voltage Range
5V
Operating Temperature Range
0°C To +70°C
Svhc
No SVHC (18-Jun-2010)
Base Number
85
Rohs Compliant
Yes
Clock Frequency
10MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
269-3934
Z85C3010PSG
Z85C3010PSG
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UM010901-0601
The three LSBs of the above MMCS values are 111 so that
the longest possible Reset pulse is generated when any of
the locations in the indicated range are accessed.
Note that if this feature is not needed, it can be disabled by
simply not programming the MMCS register.
This variability is provided in part because early versions
of the 85230 ESCC had trouble passing an interrupt
acknowledge down the daisy chain if it occurred in
RAM Size
32K x 8
128K x 8
To make the interrupt priority be:
(E)SCC highest, IUSC, ISCC, (M)USC lowest
IUSC highest, ISCC, MUSC, (E)SCC lowest
IUSC highest, ISCC, USC, (E)SCC lowest
MMCS value
Table 6. Address Ranges for Reset
DBFF
3BFF
Interrupt Daisy Chain (Priority) Order
Jumper block J25 selects whether the (E)SCC device is at
the start or the end of the interrupt daisy chain.
response to a lower-priority device’s request just as the
ESCC was starting to make its own request. Current
85230’s don’t have the problem.
Jumper J25 as follows:
J25-J2 to J25-J3, J25-J4 to J25-J5 (J25-J1, J25X open)
J25-J1 to J25-J2, J25-J to J25-J4 (J25-5J, J25X open)
J25X to J25-J2, J25-J3 to J25-J4 (J25-J1, J25-J5 open)
The Zilog Datacom Family with the 80186 CPU
Address Range for which ISCC,
IUSC, and (M)USC are Reset:
DB000-DB7FF
3B000-3B7FF
Application Note
6-63
8
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