AMD Geode SC1201 User Manual

Page 39

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AMD Geode™ SC1200/SC1201 Processor Data Book

39

Signal Definitions

32579B

AL24

MA4

O

O

2/5

V

IO

---

AL25

6

MD8

I/O

IN

T

, TS

2/5

V

IO

---

AL26

6

MD10

I/O

IN

T

, TS

2/5

V

IO

---

AL27

6

MD9

I/O

IN

T

, TS

2/5

V

IO

---

AL28

MA12

O

O

2/5

V

IO

---

AL29

6

MD23

I/O

IN

T

, TS

2/5

V

IO

---

AL30

V

IO

PWR

---

---

---

AL31

V

SS

GND

---

---

---

1.

For Buffer Type definitions, refer to Table 9-10 "Buffer Types" on page
371.

2.

Is 5V tolerant (ACK#, AFD#/DSTRB#, BUSY/WAIT#, ERR#, INIT#,
PD[7:0], PE, SLCT, SLIN#/ASTRB#, STB#/WRITE#, ONCTL#,
PWRCNT[2:1]).

3.

The TFT_PRSNT strap determines the power-on reset (POR) state of
PMR[23].

4.

The LPC_ROM strap determines the power-on reset (POR) state of
PMR[14] and PMR[22].

5.

May need 5V tolerant protection at system level (DDC_SCL,
DDC_SDA).

6.

Is back-drive protected (MD[63:0], DPOS_PORT1, DNEG_PORT1,
DPOS_PORT2, DNEG_PORT2, DPOS_PORT3, DNEG_PORT3,
ACK#, AFD#/DSTRB#, BUSY/WAIT#, ERR#, INIT#, PD[7:0], PE, SLCT,
SLIN#/ASTRB#, STB#/WRITE#, ONCTL#, PWRCNT[2:1]).

Ball
No.

Signal Name

I/O

(PU/PD)

Buffer

1

Type

Power

Rail

Configuration

Table 3-2. BGU481 Ball Assignment - Sorted by Ball Number (Continued)

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