Z84C9008VSG Zilog, Z84C9008VSG Datasheet - Page 274

• Manufacturer Part Number: Z84C9008VSG
• Description: IC 8MHZ Z80 KIO 84-PLCC
• Manufacturer: Zilog
• Series: Z80r

Specifications of Z84C9008VSG

• Processor Type: Z80
• Features: Serial/Parallel Input/Output, Counter/Timer Circuit
• Speed: 8MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 84-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: 84
• Supply Voltage Range: 5V
• Operating Temperature Range: 0°C To +70°C
• Svhc: No SVHC (18-Jun-2010)
• Rohs Compliant: Yes
• Base Number: 84
• Clock Frequency: 8MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

254
Example:
UM008005-0205
Z80 CPU
User’s Manual
A typical software routine is used to demonstrate the use of the DJNZ
instruction. This routine moves a line from an input buffer (INBUF) to an
output buffer (OUTBUF). It moves the bytes until it finds a CR, or until it
has moved 80 bytes, whichever occurs first.
LOOP:
DONE:
LD
LD
LD
LID
LD
CP
JR
INC
INC
DJNZ LOOP
8, 80
HL, Inbuf
DE, Outbuf
A, (HL)
(DE), A
ODH
Z, DONE
HL
DE
;Set up counter
;Set up pointers
;Get next byte from
;input buffer
;Store in output buffer
;Is it a CR?
;Yes finished
;Increment pointers
;Loop back if 80
;bytes have not
;been moved
Z80 Instruction Set