cs7410 Cirrus Logic, Inc., cs7410 Datasheet - Page 32

• Manufacturer Part Number: cs7410
• Description: Cd/mp3/wma Audio Controller
• Manufacturer: Cirrus Logic, Inc.

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General Purpose Input/Output (GPIO)
The CS7410 provides a number of General Purpose Input/Output (GPIO) pins, each with individual output
three-state controls, and a number of General Purpose Output (GPO) pins.
GPIO pins. A naming scheme for these pins was chosen to encourage system designers to adhere to stand-
ardized pin usage.
redefined pins, mode control register bits select the normal function or GPIO/GPO function for the pins.
Table 17
53, 52, 51, 50, 49
58, 57, 56, 55, 54
Pin
65
67
68
66
69
70
72
74
76
80
77
92
93
94
95
79
100, 99, 98, 97
also indicates which mode bit controls each pin.
Pin
59
62
63
Signal Name
PCM_MUTE
PCM_LRCK
PCM_DO_0
PCM_DO_1
SER2_CLK
SER3_CLK
SER3_SS0
SER3_SS1
SERVOCK
PCM_BCK
SER2_DO
SER3_DO
SER2_CS
CD_C2P0
Table 17
SER2_DI
SER3_DI
Signal Name
KP_OUT[4:0]
shows the GPIO and GPO pins that can be redefined from other functions. For
SER4_CLK
SER4_DAT
KP_IN[4:0]
GPIO[3:0]
Table 16. Dedicated General Purpose I/O Pins
IR_IN
Table 17. Redefined General Purpose Pins
Type
B
B
B
B
O
O
O
O
O
B
B
B
B
B
B
B
Type
B
B
B
B
B
B
GPIO controlled by Mode bit 2
GPIO controlled by Mode bit 2
GPIO controlled by Mode bit 2
GPIO controlled by Mode bit 3
GPIO controlled by Mode bit 4
GPIO controlled by Mode bit 4
GPIO controlled by Mode bit 4
GPIO controlled by Mode bit 4
GPIO controlled by Mode bit 5
GPIO controlled by Mode bit 6
GPIO controlled by Mode bit 7
GPO controlled by Mode bit 8
GPO controlled by Mode bit 9
GPO controlled by Mode bit 10
GPO controlled by Mode bit 11
GPO controlled by Mode bit 12
4 General purpose I/O on dedicated pins
5 General purpose I/O on dedicated pins
5 General purpose I/O on dedicated pins
General purpose I/O on dedicated pin
General purpose I/O on dedicated pin
General purpose I/O on dedicated pin
Description
Table 16
Description
shows the 17 dedicated
CS7410
DS553PP3