Z85C3008VSG Zilog, Z85C3008VSG Datasheet - Page 189

• 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
initscc:
init0:
;initialize z180’s scc
;
initdma:
txend:
rxend:
;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:
6-54
(Continued)
if scc_a
else
endif
Table 14. Test Program – Z180/SCC DMA Transfer (Continued)
ld
ld
cp
ret
out
inc
ld
out
inc
jr
ld
ld
ld
otimr
ld
out0
ld
ret
ld
out0
set
ei
ret
ld
out0
set
ei
ret
db
db
db
db
db
hl,scctab
a,(hl)
0ffh
z
(scc_cont),a
hl
a,(hl)
(scc_cont),a
hl
init0
hl,addrtab
c,sar0l
b,dstat - sar0l
a,00001100b
(dmode),a
a,01001000b
a,00010100b
(dstat),a
0,b
a,00100000b
(dstat),a
1,b
09h
10000000b
01000000b
04h
00000100b
; initialize scc
;initialize DMA
;dmac0 - i/o to mem++
;1 mem wait, no i/o wait,
;should be EDGE for Tx DMA
;NOT level
;- because of DTR/REQ timing
;isr for dma1 int-complete tx
;disable dma1
;set status
;isr for dma0 int
;disable dma0
;set status
;select WR9
;reset ch a
;Reset Ch B
;select WR4
;async,x1,1stop,parity off
UM010901-0601