Z85C3008VSG Zilog, Z85C3008VSG Datasheet - Page 183

• Manufacturer Part Number: Z85C3008VSG
• Description: IC 8MHZ Z8500 CMOS SCC 44-PLCC
• Manufacturer: Zilog
• Series: SCCr

Specifications of Z85C3008VSG

• Processor Type: Z80
• Features: Error Detection and Multiprotocol Support
• Speed: 8MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 44-LCC (J-Lead)
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Cpu Speed: 8MHz
• Digital Ic Case Style: LCC
• No. Of Pins: 44
• 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: 8MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-3932; Z85C3008VSG

Application Note
The Z180™ Interfaced with the SCC at MHZ
;external/status interrupt
service routine
ext_stat:
;initialization data table for scc
;table format - register number, then value for the register
;and ends with 0ffh - since scc doesn’t have
;register 0ffh...
scctab:
;interrupt vector table
sccvect:
top_of_sp:
6-48
(Continued)
Table 12. SCC Test Program – Interrupt for 180/SCC Application Board (Under Mode2 Interrupt) (Continued)
ld
if
else
endif
a,10h
out
in
and
rra
rra
rra
rra
rra
set
ld
ld
out
ei
ret
db
scc_a
db
db
db
db
db
db
db
db
db
db
db
org
dw
.block
end
(scc_cont),a
a,(scc_cont)
00100000b
1,a
b,a
a,38h
(scc_cont),a
09h
10000000b
01000000b
0eh
20h
01h
00000001b
10h
10h
09h
08h
0ffh
inttest + 100h
ext_stat
100h
;reset ext/stat int
;read stat
;mask off bits other than /cts
;shift into D0 loc
;set interrupt flag
;save it
;reset highest ius
;enable int
;return from int
;select WR9
;ch a reset
;ch b reset
;select WR15
;only enable /cts int
;select WR1
;enable ext/stat int
;reset ext/stat int
;twice
;select WR9
;mie, vect not incl. stat
;end of table
;reserve area for stack
UM010901-0601