Z16C3510VSG Zilog, Z16C3510VSG Datasheet - Page 159

• Manufacturer Part Number: Z16C3510VSG
• Description: IC 10MHZ Z8500 CMOS ISCC 68-PLCC
• Manufacturer: Zilog
• Series: IUSC™r

Specifications of Z16C3510VSG

• Controller Type: Serial Communications Controller (SCC)
• Interface: USB
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 50mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 68-LCC (J-Lead)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

UM011001-0601
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
9-5
8