zpsd211r STMicroelectronics, zpsd211r Datasheet - Page 41

• Manufacturer Part Number: zpsd211r
• Description: Low Cost Field Programmable Microcontroller Peripherals
• Manufacturer: STMicroelectronics

Figure 21. Chip-select Output Timing
Notes for
Timing
Diagrams
38
PSD211R Family
2. Multiplexed inputs: any of the following inputs that are latched by the ALE (or AS):
3. CSOi = any of the chip-select output signals coming through Port B (CS0–CS7) or through
4. CSOi product terms can include any of the PAD input signals shown in Figure 4, except for reset
1. Direct PAD input = any of the following direct PAD input lines: CSI/A19 as transparent A19,
PAD Inputs
Multiplexed
RD/E, WR or R/W, transparent PC0–PC2, ALE in non-multiplexed modes.
A0/AD0–A15/AD15, CSI/A19 as ALE dependent A19, ALE dependent PC0–PC2.
Port C (CS8–CS10).
Direct PAD
and CSI.
CSOi
Input
A19/CSI
or ALE
as CSI
ALE
(3, 4)
(1)
(2)
1
2
30
21
INPUT STABLE
3
31
22