GPIOs 20040219

[Oleg Gusev]

GPIO#                   Function                  Direction(in/out)  alt
--------------------------------------------------------------------------
0                               keyboard                       in            -

1                               ???                            in            -

2                               LDD                        out+        alt(LCD split)
3                               LDD                   out+            alt(LCD split)
4                               LDD                   out+            alt(LCD split)
5                               LDD                             out+            alt(LCD split)
6                               LDD                             out+            alt(LCD split)
7                               LDD                             out+            alt(LCD split)
8                               LDD                             out+            alt(LCD split)
9                               LDD                out+            alt(LCD split)
10                             SSP_Tx                             out+            alt(SSP transmit)
11                             SSP_Rx                             in+             alt(SSP receive)
12                             SSP_SCLK                             out+            alt(SSP serial clock)
13                             SSP_FCLK                            out+            alt(SSP frame clock)
14                              SA-1101 chain           in              -

15                              Ser3_DCD?                             in              -
16                              Ser1_DCD?                             in              -
17                              ???                             out             -
18                              DTR/CTS?                             in              -
19                              ???                             out             -

20                              reset                   out             -

21                              MBGNT                             out+            alt(TIC ack   /MBGNT)
22                              MBREQ                             in+             alt(TIC reqA /MBREQ)

23                              backlight                       out             -

24                              ???                             in              -

25                              LED                             out             -
26                              LED/button                             in              -
27                              SA1101 clock            out+            alt(32KHZ_OUT)