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Teilenummer | W65C134S |
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Beschreibung | Microcomputer | |
Hersteller | The Western Design Center | |
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Gesamt 30 Seiten The Western Design Center, Inc.
May 2003
W65C134S Data Sheet
W65C134S
DATA SHEET
www.DataSheet.co.kr
© The Western Design Center, Inc., 2003. All rights reserved
WDC
Datasheet pdf - http://www.DataSheet4U.net/
The Western Design Center, Inc.
BCR7
0
0
1
1
Table 1-1 BCR7 and BE Control
BE W65C134S Configuration
0 Internal ROM External Processor (DMA)
1 Internal ROM Internal Processor
0 External ROM External Processor (DMA)
1 External ROM Internal Processor
W65C134S Data Sheet
1.5 Chip Select Enable Register PCS3)($0007)
1.5.1
1.5.2
1.5.3
PCS is the Port 3 Chip Select Register. The PCS allows each individual chip select to be active or
non-active. When PCS30-PCS37 are equal to a "1", then CS0B to CS7B will be active. When
CS1B is active, the defined memory space for CS3B and/or CS6B is reduced. It is reduced by the
memory space 0100-011F for CS1B. When CS2B is active, the defined memory space for CS3B
and/or CS6B is reduced. It is reduced by the memory space 0120-013F for CS2B.
CS7B is automatically enabled when BCR7=1.
The W65C134S will use the internal RAM as stack when PCS33 and PCS36 are disabled. If
PCS33 or PCS36 are enabled then the off chip stack is used.
7
CS7B
6
CS6B
5
CS5B
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4
CS4B
3
CS3B
2
CS2B
1
CS1B
0
CS0B
Figure 1-3 Chip Select Enable Register
The Western Design Center, Inc.
W65C134S Data Sheet
6
Datasheet pdf - http://www.DataSheet4U.net/
6 Page The Western Design Center, Inc.
W65C134S Data Sheet
IER2 bits 0-7
0=Disable Interrupt
1=Enable Interrupt
IER2
76
54321
0
($0009)
↓↓ ↓↓↓↓↓ ↓
Priority Logic
↑↑ ↑↑↑↑↑ ↑
IFR2
76 54321
0
($0008)
PE54 Positive Edge Interrupt
PE55 Positive Edge Interrupt
PE56 Positive Edge Interrupt
NE57 Negative Edge Interrupt
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Timer 1 Edge Interrupt
Timer 2 Edge Interrupt
IRQ1B Low Level Interrupt
IRQ2B Low Level Interrupt
Figure 1-6 Interrupt Enable Register Two (IER2) ($0009)
and Interrupt Flag Register Two (IFR2) ($0008)
The Western Design Center, Inc.
W65C134S Data Sheet
12
Datasheet pdf - http://www.DataSheet4U.net/
12 Page | ||
Seiten | Gesamt 30 Seiten | |
PDF Download | [ W65C134S Schematic.PDF ] |
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