User's Manual

iSR3500 Series 7 / 11 Pre-rev 0.3
Mobile SolutionsMobile Solutions
Pin# Name Description Dir Category GPIO Supply Domain
2 RXD RX Data I/O UART GPIO 10 VDDP_IO
4 TXD TX Data O UART GPIO 11 VDDP_IO
6 ON Switch On I VDDP_RTC
8 DSR Data Set Ready O UART GPIO 20 VDDP_IO
10 NMI_n Non-Maskable Interrupt I Interrupt GPIO 38 VDDP_IO
12 DTR Data Terminal Ready I UART GPIO 37 VDDP_IO
14 VIB_CTRL / RI
Vibrator control (mobile)
Ring Indicator (modem)
I/O GPIO GPIO 36 VDDP_IO
16 KEYPAD_LED
Keypad LED control (mobile)
HS_DET (modem)
O GPIO GPIO 35 VDDP_IO
18 GND GND
20 GND GND
22 VBAT1 Vbatt for PA
24 VBAT1 Vbatt for PA
26 VBAT1 Vbatt for PA
28 VBAT1 Vbatt for PA
30 VBAT1 Vbatt for PA
32 GND GND
34
DCD /
W_LED_DRV
White LED DRV (mobile)
Data Carrier Detect (modem)
O GPIO White LED GPIO 34 VDDP_IO
36 EXT_ MIC External Mic I MIC
38 MICP1 MIC P I MIC VDDA_ VBT
40 MICN1 MIC N I MIC VDDA_ VBT
42 VMIC MIC Bias MIC Power supply VDDA_ VBT
44 TBAT Battery Temperature
46 DISP_ REST Display Reset O Display GPIO 17 VDDP_IO
48 CDT Charger Detect Charger
50 CS Charger Switch Charger
52 CS2_n Chip select 2 (CS2/) O Peripheral interface GPIO 24 VDDP_ MEM
54 CS3_n Chip select 3 (CS3/) O Peripheral interface GPIO 39 VDDP_ MEM
56 RD_n READ/ O Peripheral interface
58 WR_n Write/ Peripheral interface
60 W_LED_FBN White LED feedback N I White LED
62 KEYIN0 Keypad Input 0 I Keypad GPIO 6 VDDP_IO
64 KEYIN1 Keypad Input 1 I Keypad GPIO 7 VDDP_IO
66 KEYIN2 Keypad Input 2 I Keypad GPIO 8 VDDP_IO
68 KEYIN3 Keypad Input 3 I Keypad GPIO 9 VDDP_IO
70 KEYOUT0 Keypad Out 0 O Keypad GPIO 0 VDDP_IO
72 KEYOUT1 Keypad Out 1 O Keypad GPIO 1 VDDP_IO
74 KEYOUT2 Keypad Out 2 O Keypad GPIO 2 VDDP_IO
76 KEYOUT3 Keypad Out 3 O Keypad GPIO 3 VDDP_IO
78 KEYOUT4 Keypad Out 4 O Keypad GPIO 4 VDDP_IO
80 KEYOUT5 Keypad Out 5 I/O Keypad GPIO 5 VDDP_IO