Z84C9008VSG Zilog, Z84C9008VSG Datasheet - Page 149

• 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

Operation:
Op Code:
Operands:
Description: This 2-byte instruction transfers a byte of data from the memory location
Condition Bits Affected:
UM008005-0205
(DE) ← (HL), DE ← DE + 1, HL ← HL + 1, BC F↔ BC -1
LDIR
B8
addressed by the contents of the HL register pair to the memory location
addressed by the DE register pair. Both these register pairs are incremented
and the BC (Byte Counter) register pair is decremented. If decrementing
causes the BC to go to zero, the instruction is terminated. If BC is not zero,
the program counter is decremented by two and the instruction is repeated.
Interrupts are recognized and two refresh cycles are executed after each
data transfer. When BC is set to zero prior to instruction execution, the
instruction loops through 64 Kbytes.
For BC ≠ 0:
For BC = 0:
S is not affected
Z is not affected
H is reset
P/V is reset
N is reset
C is not affected
1
1
1
0
M Cycles
M Cycles
1
1
5
4
0
1
1
0
21 (4, 4, 3, 5, 5)
LDIR
16 (4, 4, 3, 5)
1
0
T States
T States
0
0
1
0
ED
B0
4 MHz E.T.
4 MHz E.T.
5.25
4.00
Z80 Instruction Set
User’s Manual
Z80 CPU
129