CS7410

DS553PP1

35

4.9

General Purpose Input/Output (GPIO)

The CS7410 provides a number of General Purpose Input/Output (GPIO) pins, each with individual output

ed GPIO pins. A naming scheme for these pins was chosen to encourage system designers to adhere to

For redefined pins, mode control register bits select the normal function or GPIO/GPO function for the pins.

Pin

Signal Name

Type

Description

100, 99, 98, 97

GPIO[3:0]

B

4 General purpose I/O on dedicated pins

53, 52, 51, 50, 49

KP_IN[4:0]

B

5 General purpose I/O on dedicated pins

58, 57, 56, 55, 54

KP_OUT[4:0]

B

5 General purpose I/O on dedicated pins

59

IR_IN

B

General purpose I/O on dedicated pin

62

SER4_CLK

B

General purpose I/O on dedicated pin

63

SER4_DAT

B

General purpose I/O on dedicated pin

Table 16. Dedicated General Purpose I/O Pins

Pin

Signal Name

Type

Description

65

SER2_CLK

B

GPIO controlled by Mode bit 2

67

SER2_DO

B

GPIO controlled by Mode bit 2

68

SER2_CS

B

GPIO controlled by Mode bit 2

66

SER2_DI

B

GPIO controlled by Mode bit 3

69

SER3_CLK

B

GPIO controlled by Mode bit 4

70

SER3_DO

B

GPIO controlled by Mode bit 4

72

SER3_DI

B

GPIO controlled by Mode bit 4

74

SER3_SS0

B

GPIO controlled by Mode bit 4

76

SER3_SS1

B

GPIO controlled by Mode bit 5

80

CD_C2P0

B

GPIO controlled by Mode bit 6

77

SERVOCK

B

GPIO controlled by Mode bit 7

92

PCM_BCK

O

GPO controlled by Mode bit 8

93

PCM_LRCK

O

GPO controlled by Mode bit 9

94

PCM_DO_0

O

GPO controlled by Mode bit 10

95

PCM_DO_1

O

GPO controlled by Mode bit 11

79

PCM_MUTE

O

GPO controlled by Mode bit 12

84

DAC_LP

O

GPO controlled by Mode bit 13

Table 17. Redefined General Purpose Pins