Cirrus-logic EP7312 User Manual download pdf (Page 33)

DS508F2 Copyright Cirrus Logic, Inc. 2011

(All Rights Reserved) 33

EP7312

High-Performance, Low-Power System on Chip

38 DSR I UART 1 data set ready input

39 nTEST[1] With p/u* I Test mode select input

40 nTEST[0] With p/u* I Test mode select input

41 EINT[3] I External interrupt

42 nEINT[2] I External interrupt input

43 nEINT[1] I External interrupt input

44 nEXTFIQ I External fast interrupt input

45 PE[2]/CLKSEL 1

Input

‡

I/O

GPIO port E / clock input

mode select

46 PE[1]/BOOTSEL[1] 1

Input

‡

I/O

GPIO port E / boot mode

select

47 PE[0]/BOOTSEL[0] 1

Input

‡

I/O

GPIO port E / Boot mode

select

48 VSSRTC RTC Gnd Real time clock ground

49 RTCOUT O

Real time clock oscillator

output

50 RTCIN I

Real time clock oscillator

input

51 VDDRTC RTC power Real time clock power, 2.5 V

52 N/C

53 PD[7]/SDQM[1] 1 Low I/O

GPIO port D / SDRAM byte

lane mask

54 PD[6]/SDQM[0] 1 Low I/O

GPIO port D / SDRAM byte

lane mask

55 PD[5] 1 Low I/O GPIO port D

56 PD[4] 1 Low I/O GPIO port D

57 VDDIO Pad Pwr Digital I/O power, 3.3 V

58 TMS with p/u* I JTAG mode select

59 PD[3] 1 Low I/O GPIO port D

60 PD[2] 1 Low I/O GPIO port D

61 PD[1] 1 Low I/O GPIO port D

62 PD[0]/LEDFLSH 1 Low I/O

GPIO port D / LED blinker

output

63 SSICLK 1

Input

‡

I/O DAI/CODEC/SSI2 serial clock

64 VSSIO Pad Gnd I/O ground

65 SSITXFR 1 Low I/O DAI/CODEC/SSI2 serial clock

66 SSITXDA 1 Low O

DAI/CODEC/SSI2 serial data

output

67 SSIRXDA I

DAI/CODEC/SSI2 serial data

input

68 SSIRXFR

Input

‡

I/O DAI/CODEC/SSI2 frame sync

69 ADCIN I SSI1 ADC serial input

70 nADCCS 1 High O SSI1 ADC chip select

71 VSSCORE Core ground Core ground

72 VDDCORE Core Pwr Core power, 2.5 V

73 VSSIO Pad Gnd I/O ground

74 VDDIO Pad Pwr Digital I/O power, 3.3 V

75 DRIVE[1] 2

High /

Low

I/O PWM drive output

76 DRIVE[0] 2

High /

Low

I/O PWM drive output

77 ADCCLK 1 Low O SSI1 ADC serial clock

78 ADCOUT 1 Low O SSI1 ADC serial data output

Table 20. 208-Pin LQFP Numeric Pin Listing (Continued)

Pin

No.

Signal

Strength

†

Reset

State

Type Description

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 53 54

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