Z16C3516VSG Zilog, Z16C3516VSG Datasheet - Page 150

• Manufacturer Part Number: Z16C3516VSG
• Description: IC 16MHZ Z8500 CMOS ISCC 68-PLCC
• Manufacturer: Zilog
• Series: IUSC™r

Specifications of Z16C3516VSG

• 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
• Other names: 269-4690-5; Z16C3516VSG

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:
7-30
(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
UM011001-0601