ELANSC310 AMD [Advanced Micro Devices], ELANSC310 Datasheet - Page 60

• Manufacturer Part Number: ELANSC310
• Description: Single-Chip, 32-Bit, PC/AT Microcontroller
• Manufacturer: AMD [Advanced Micro Devices]

Maximum ISA Interface versus Local Bus Interface
The maximum ISA interface alternate functions are configured via the DTR and RTS pin states when the ÉlanSC310
microcontroller is reset.
Notes:
See Table 25 on page 56 for information on required termination for Maximum ISA Bus and Local Bus modes.
60
BALE
DRQ0
DRQ3
DRQ6
DRQ7
DACK0
DACK3
DACK6
DACK7
IRQ5
IRQ7
IRQ9
IRQ10
IRQ11
LA23–LA17
LMEG
0WS
ISA Interface Pin Name
Table 27. Pins Shared Between Maximum ISA Bus and Local Bus Interface Functions
Pin Type
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
Élan™SC310 Microcontroller Data Sheet
ISA Bus Address Latch Enable
DMA Channel 0 Request
DMA Channel 3 Request
DMA Channel 6 Request
DMA Channel 7 Request
DMA Channel 0 Acknowledge
DMA Channel 3 Acknowledge
DMA Channel 6 Acknowledge
DMA Channel 7 Acknowledge
Interrupt Request input
Interrupt Request input
Interrupt Request input
Interrupt Request input
Interrupt Request input
ISA Non-Latched Address Bus
ISA Memory Address Decode Below 1
Mbyte
Zero Wait State
ISA Interface Pin Description/Notes
P R E L I M I N A R Y
A12
D/C
M/IO
LRDY
W/R
A16
A15
A13
A14
PULLDN
PULLUP
BHE
PULLUP
BLE
A23–A17
CPURDY
ADS
Local Bus Mode Function
Pin Name
Pin No.
149–155
145
171
170
166
169
158
159
161
160
178
164
168
179
167
147
172