Internal

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Internal Pads[edit]

It is not documented yet what use the pads have (e.g. Service Connectors, SPI, I2C, JTAG, PCIe etc.)

pads 1 (GbLAN)[edit]

CUH-10xxA SAA-001 pads1/14 pins - img1

CUH-10xxA SAA-001 pads1/14 pins - img1

GbLAN MDIO

Pin Name Description
1 Vcc Internal +5V
2 Vcc Internal +5V
3 Vcc Internal +5V
4 Vcc Internal +5V
5
6
7 Gnd Internal ground
8
9 Gnd Internal ground
10
11 Gnd Internal ground
12
13 Gnd Internal ground
14 Gnd Internal ground

pads 2 (Southbridge)[edit]

CUH-10xxA SAA-001 pads2/20 pins - img1

CUH-10xxA SAA-001 pads2/20 pins - img2

Southbridge debug (No activity was detected so far. It looks to be disabled / turned off)

Pin Name Description
1
2 Gnd Internal ground
3
4
5
6
7
8 Gnd Internal ground
9
10 Gnd Internal ground
11 3.3V when console is started
12
13
14
15
16
17 Gnd Internal ground
18
19 Gnd Internal ground
20 Vcc +3.3V_STBY power (always on, including the deep standby)

pads 3 (A01-COL)[edit]

CUH-10xxA SAA-001 pads3/30 pins - img1

CUH-10xxA SAA-001 pads3/30 pins - img2

A01-COL

Pin Name Description
1
2
3
4
5
6 Gnd Internal ground
7 I2C I2C bus (100 kHz clock)
8 Gnd Internal ground
9
10
11
12
13 Gnd Internal ground
14
15
16
17 Gnd Internal ground
18
19
20
21
22 Gnd Internal ground
23
24
25 Gnd Internal ground
26
27
28
29
30

UART[edit]

UART0 Console - Southbridge UART, as seen on SAA-001 (same layout on SAA-K23, SAB-K02 and SAB-001)

Same layout is used for SAA-K23, SAB-K02 / SAA-001, SAB-001 (pads are present on SAC-001 too, but layout slightly differs)

3.3V CMOS TTL - 115200, n, 8.1

UART0 Console[edit]

Pin Name Description
GND Ground
U0C_TX UART0 Console Transmit
U0C_RX UART0 Console Receive

Note: quite useless, as the output is zeroed out by "spaces" on retail models

Southbridge UART[edit]

Pin Name Description
GND Ground
TX Southbridge UART Transmit
RX Southbridge UART Receive

Note: quite similar to PS3 Syscon UART