TCC76x
Specification Rev. 0.07
February 23, 2005
32-bit RISC Microprocessor for Digital Media Player
GPIO PORT
Preliminary
7-6
GPIO_B Test Select Register (GTSEL_B)
0x8000031C
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
0
EX1A
EX2
0
EX1B
GST[2:0]
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
IDECS
0
EX1CLK
0
FOUT
If a bit is set to 1, and the corresponding bit of GSEL_B is 0, GPIO_B pin is used by the
other dedicated peripherals.
EX1A [29]
GPIO_B[29] Function Select
0
GPIO_B[29] pin is working as Normal GPIO Function or USB DN
1
GPIO_B[29] pin is working as EX1CLK from Clock Controller
EX2 [28]
GPIO_B[28] Function Select
0
GPIO_B[28] pin is working as Normal GPIO Function or USB DP
1
GPIO_B[28] pin is working as EX2CLK from Clock Controller
EX1A [24]
GPIO_B[24] Function Select
0
GPIO_B[24] pin is working as Normal GPIO Function or I2S Data
Output
1
GPIO_B[24] pin is working as EX1CLK from Clock Controller
GST [23:21]
GPIO_B[23:21] Function Select
0
GPIO_B[23:21] pin is working as Normal GPIO Function
GST[2] = 1
GST[1] = 1
GST[0] = 1
GPIO_B[23] pin is working as FRM of 1 of 4 GSIO blocks
GPIO_B[22] pin is working as SCK of 1 of 4 GSIO blocks
GPIO_B[21] pin is working as SDO of 1 of 4 GSIO blocks
IDECS [9]
GPIO_B[9] Function Select
0
GPIO_B[9] pin is working as Normal GPIO Function
1
GPIO_B[9] pin is working as IDE_nCS1
EX1CLK
[5:2]
GPIO_B[5:2] Function Select
0
GPIO_B[5:2] pin is working as Normal GPIO Function
1
GPIO_B[5:2] pin is working as EX1CLK from Clock Controller
FOUT [0]
GPIO_B[0] Function Select
0
GPIO_B[0] pin is working as Normal GPIO Function
1
GPIO_B[0] pin is working as FOUT from Clock Controller
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