TCC720 Datasheet, PDF (52/143 Pages) List of Unclassifed Manufacturers – 32-bit RISC Microprocessor For Digital Media Player

TCC720
32-bit RISC Microprocessor for Digital Media Player
Dec. 16. 2002
GPIO PORT
Preliminary Spec 0.51
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
EXT GST[2:0]
0
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
IDE
*) if a bit is set to 1, and the corresponding bit of GSEL_B is 0, GPIO pin is used by the other
dedicated function blocks.
EXT [24]
0
1
GPIO_B[24] Function Select
GPIO_B[24] pin is working as Normal GPIO Function or I2S Data Output
GPIO_B[24] pin is working as EXTCLK from Clock Controller
IDE [9]
0
1
GPIO_B[9] Function Select
GPIO_B[9] pin is working as Normal GPIO Function or UART Data Input
GPIO_B[9] pin is working as chip select 1 for IDE
GST[2:0] [23:21]
GPIO_B[23:21] Function Select
0
GPIO_B[23:21] pin is working as Normal GPIO Function
GST[2] = 1 GPIO_B[23] pin is working as FRM of 1 of 4 GSIO blocks
GST[1] = 1 GPIO_B[22] pin is working as SCK of 1 of 4 GSIO blocks
GST[0] = 1 GPIO_B[21] pin is working as SDO of 1 of 4 GSIO blocks
*) this bit field is only valid only if the corresponding bit of GSEL_B is set to 0
6-7