z84c00 ZiLOG Semiconductor, z84c00 Datasheet - Page 14

• Manufacturer Part Number: z84c00
• Description: Kio Serial/parallel Counter Timer
• Manufacturer: ZiLOG Semiconductor

Standard Test Conditions
PS011802-0902
Table 2. KIO Registers
The DC Characteristics and Capacitance sections below apply to the following standard
test conditions, unless otherwise noted. All voltages are referenced to GND (0V). Posi-
tive current flows into the referenced pin.
Available operating temperature ranges are:
•
•
Voltage Supply Range: +5.0V ± 10%
All AC parameters assume a load capacitance of 100 pF. Add 10 ns delay for each 50 pF
increase in load up to a maximum of 200 pF for the data bus and 100 pF for the address
and control lines. AC timing measurements are referenced to 1.5 volts (except for
CLOCK, which is referenced to the 10% and 90% points.
Address
Register 0: PIO Port A Data
Register 1: PIO Port A Command
Register 2: PIO Port B Data
Register 3: PIO Port B Command
Register 4: CTC Channel 0
Register 5: CTC Channel 1
Register 6:
Register 7:
Register 8: SIO Port A Data
Register 9: SIO Port A Command/Status
Register 10: SIO Channel B Data
Register 11: SIO Channel B Command/Status
Register 12: PIA Port C Data
Register 13: PIA Port C Command
Register 14: KIO Command
Register 15: Reserved
Note: Additionally, IORQ and CS must be Low. Registers are written to or read from by the CPU,
applying a 1 or a 0 respectively on the RD pin.
S = 0° C to +70° C
E = –40° C to +100° C
KIO Serial/Parallel Counter Timer
A3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
A2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
A1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Z84C90
A0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
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