texet TF-127, Service Manual

Page: 72 / 205

AML6210DP A/V Processor User Guide Version 0.2
5/19/2008 19/24 AMLOGIC Proprietary
Pin Pin name Description Comments / Alternate usage Type
73 USBA_id USBA identifier
USB Mini-receptacle Identifier between mini-
A/mini-B plug
AI
74 USBA_vbus USBA mini VBUS
USB power supply pin (5 volt). An off-chip
charge pump is used to provide power to the
VBUS pin. AP
75 USBA_vdd12
USBA Digital 1.2V
Power
Digital 1.2V power for USB-A
AP
76 USBA_vss12 USBA Digital Ground Digital ground for USB-A
AP
77 USBA_vssa33t USBA ground Analog ground for USB-A transceiver
AP
78 USBA_dp USBA D+ D+ analog signal from the USB cable
A
79 USBA_dm USSA D- D- analog signal from the USB cable
A
80 USBA_vdda33t USBA 3.3V power Analog 3.3V power for USB-A transceiver AP
81 USBA_rext
USBA Ext Ref
resistor External resistor that controls the bias
current for USB AP
82 USBA_vdda33c USBA 3.3V power Analog 3.3V power for USB-A core
AP
83 USBA_vssa33c USBA ground Analog ground for USB-A core AP
84 PLLC_AVDD33 PLL VDD PLL power
AP
85 PLLC_AVSS33 PLL Ground PLL ground AP
86 PLLB_AVDD33 PLL VDD PLL power
AP
87 PLLB_AVSS33 PLL Ground PLL ground AP
88 PLLA_AVDD33 PLL VDD PLL power
AP
89 PLLA_AVSS33 PLL Ground PLL ground AP
90 OSCIN OSC Input 27MHz crystal oscillator input I
91 OSCOUT OSC Output 27MHz crystal oscillator output O
92 VDD12 Digital Core Power Digital core 1.2V power P
93 BUTTON_1 BUTTON_1
BUTTON or GPIO or MISC
I/O
94 BUTTON_2 BUTTON_2
BUTTON or GPIO or MISC
I/O
95 BUTTON_3 BUTTON_3 BUTTON or GPIO or MISC I/O
96 VDD33 VDD Digital Power 3.3V P
97 I2C_CLOCK GPIO GPIO I/O
98 I2C_DATA GPIO GPIO I/O
99 VSS VSS Digital Ground P
100 XD_RE Card Reader I/O Card Reader I/F or GPIO I/O
101 XD_WE Card Reader I/O Card Reader I/F or GPIO I/O
102 XD_READY Card Reader I/O Card Reader I/F or GPIO I/O
103 XD_CE Card Reader I/O Card Reader I/F or GPIO I/O
104 XD_ALE Card Reader I/O Card Reader I/F or GPIO I/O
105 XD_CLE Card Reader I/O Card Reader I/F or GPIO I/O
106 XD_RB Card Reader I/O Card Reader I/F or GPIO I/O
107 XD_WP Card Reader I/O Card Reader I/F or GPIO I/O
108 VDD33 Digital I/O Power Digital I/O 3.3V power P