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44409 Rev. 1.70 October 10
Pin Name
SATA_IS5#/CLK_REQ2#/
FANIN3/GPIO40
Note: For each port there is a pin (SATA_IS) for sensing the status of the external interlock switch. If the
motherboard implements SATA interlock switches, it should connect the statuses of the switches to those pins. The
SP5100 will sense the statuses of those pins and can generate a PME or interrupt when the statuses change.
Normally, an inter-lock switch is required for supporting hot plug.
7.8
HD Audio Interface
Pin Name
AZ_BITCLK
AZ_RST#
AZ_SDIN[2:0]/GPIO[44:42]
AZ_SDIN3/GPIO46
AZ_SDOUT
AZ_SYNC
7.9
Real Time Clock Interface
Pin Name
RTCCLK
VBAT
X1
X2
7.10
Hardware Monitor
Note: Hardware monitor support is available for voltage sensors, fan control, and digital TSI to AM3
processors. However, temperature monitoring is NOT supported. See the SP5100 Schematic Review
Checklist for how to terminate these signals if they are not used for either hardware monitor or GPIO
function.
Pin Name
FANOUT0/GPIO3
FANOUT1/GPIO48
FANOUT2/GPIO49
FANIN0/GPIO50
FANIN1/GPIO51
FANIN2/GPIO52
CLK_REQ1#/SATA_IS4/
FANOUT3/GPIO39
TEMP_COMM
TEMPIN0*/GPIO61
TEMPIN1*/GPIO62
TEMPIN2*/GPIO63
Type
Voltage
I/O
3.3 V
Type
Voltage
O
3.3 V
O
S5_3.3V
I/O
S5_3.3V
I/O
S5_3.3V
O
3.3 V
O
3.3 V
Type
Voltage
I/O
S5_3.3V/VBAT
I
S5_3.3V/VBAT
I
S5_3.3V/VBAT
O
S5_3.3V/VBAT
Type
Voltage
I/O
3.3 V (5-V Tolerance)
I/O
3.3 V (5-V Tolerance)
I/O
3.3 V (5-V Tolerance)
I/O
3.3 V (5-V Tolerance)
I/O
3.3 V (5-V Tolerance)
I/O
3.3 V (5-V Tolerance)
I/O
3.3 V
I
Analog Ground
I/O
3.3 V
I/O
3.3 V
I/O
3.3 V
Signal Description
Functional Description
SATA Interlock Switch Port 5 (input) / PCI Express clock
request/ Fan Tach In3 / GPIO40
Functional description
HD Audio Interface Bit Clock
HD Audio interface Reset
HD Audio Serial Data Input from Codec [2:0] /
GPIO [44:42]
HD Audio Serial Data Input from Codec 3/ GPIO 46
HD Audio Serial Data Output to Codec
HD Audio Sync signal to Codec
Functional Description
32-kHz output for internal RTC
RTC battery supply
RTC crystal oscillator input 1
RTC crystal oscillator input 2
Functional Description
Fan Output 0 / GPIO 3
Fan Output 1 / GPIO 48
Fan Output 2 / GPIO 49
Fan Tachometer Input 0 / GPIO 50
Fan Tachometer Input 1 / GPIO 51
Fan Tachometer Input 2 / GPIO 52
®
PCI Express
Clock Request / SATA Interlock Switch
Port 4 (input) / Fan Output 3 / GPIO39
Temperature sensor diode current return path.
Temperature Monitor Input 0* / GPIO 61
Temperature Monitor Input 1* / GPIO 62
Temperature Monitor Input 2* / GPIO 63
AMD SP5100 Databook
37
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