ELANSC310 AMD [Advanced Micro Devices], ELANSC310 Datasheet - Page 24

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

Notes:
1. Reset State SYSCLK frequency is 4.6 MHz.
2. The drive strength for these pins is programmable. E is the default.
All inputs that have VCC clamp = 5 V are 5-V safe inputs regardless of their VCCIO.
Notes:
All inputs that have VCC clamp = 5 V are 5-V safe inputs regardless of their VCCIO.
24
TC [TMS]
ENDIRL
ENDIRH
DBUFOE
IOR
IOW
MEMR
MEMW
RSTDRV
IOCHRDY
DACK1
DRQ1
DACK5
DRQ5
IOCHCHK
IRQ4
IRQ12
IRQ15
IOCS16
MCS16
IRQ14
SBHE
8042CS [XTDAT]
RC
A20GATE
Signal Name
Signal Name
Pin No.
Pin No.
192
146
174
144
175
177
173
181
182
196
197
198
143
49
50
51
59
54
55
56
57
58
75
78
79
O(STI)
Type
Type
O(I)
STI
I/O
Élan™SC310 Microcontroller Data Sheet
O
O
O
O
O
O
O
O
O
O
O
I/O
I
I
I
I
I
I
I
I
I
Table 3. System Interface (Continued)
I
I
Table 4. Keyboard Interface
Term
P R E L I M I N A R Y
Term
PU
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
PU
PU
—
Drive
Type
Drive
Type
—
B
B
B
B
C
C
C
C
A
B
C
C
C
C
C
C
B
C
C
C
C
—
—
B
Clock
Clock
Off
1(–)
—
—
—
—
—
—
—
—
—
—
Off
0
1
1
1
1
1
1
1
0
1
1
0
—
—
Local
Bus
Local
0.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
3.3
3.3
0.0
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
0.0
0.0
Reset State
Bus
5.0
5.0
5.0
Reset State
(volts)
(volts)
Max
ISA
0.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
3.3
5.0
0.0
5.0
0.0
3.3
3.3
3.3
3.3
3.3
3.3
0.0
0.0
Max
ISA
5.0
5.0
5.0
VCCIO
VSYS2
VSYS2
VSYS2
VSYS
VSYS
VSYS
VSYS
VSYS
VSYS
VSYS
VSYS
VSYS
VCC1
VCC1
VCC1
VCC1
VCC1
VCC1
VCC1
VCC1
VCC1
VCC1
VCCIO
VSYS
VSYS
VSYS
Clamp
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
VCC5
Clamp
VCC
VCC5
VCC5
VCC5
VCC
Spec.
Load
Spec.
Load
(pF)
100
100
100
100
100
100
(pF)
30
30
30
30
50
50
50
50
30
30
50
70
70
70
70
—
30
—
—