GX15
6 – 13
CONFIDENTIAL
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
27
RESET
Input
Reset if high. Input debounced, so must be high for >5ms to cause a reset
28*
SPI_MOSI
Input
Serial peripheral interface data input (Not used)
29*
SPI_CSB
Input
Chip select for Serial Peripheral Interface, active low (Not used)
30*
SPI_CLK
Input
Serial peripheral interface clock (Not used)
31*
RF_IN (NC)
Input
Single-ended receiver input (Not used)
32
VSS_RADIO
–
Earth connections for RF circuitry
33*
AUX_DAC (NC)
Output
Voltage DAC output (Not used)
34
RESET_B
Input
Reset if low. Input debounced, so must be low for >5ms to cause a reset
35
VSS_PADS
–
Earth connections for input/output
36
VDD_PADS
Input
Positive supply for all other digital input/output ports (Positive supply for SPI/PCM ports
and PIO[7:4])
37
TX_B
Output
Complement of TX_A
38
VSS_RADIO
–
Earth connections for RF circuitry
39*
PIO[11]
Input/Output
Programmable input/output line (Not used)
40*
PIO[4]
Input/Output
Programmable input/output line (Not used)
41
VSS_CORE
–
Earth connection for internal digital circuitry
42
VDD_CORE
Input
Positive supply for Internal digital circuitry
43
TX_A
Input/Output
Transmitter output/switched receiver input
44
VSS_RADIO
–
Earth connections for RF circuitry
45
VSS
–
Earth connection for internal package shield
46*
PIO[5]
Input/Output
Programmable input/output line (Not used)
47*
PIO[7]
Input/Output
Programmable input/output line (Not used)
48*
PIO[6]
Input/Output
Programmable input/output line (Not used)
49
VSS_VCO
–
Earth connections for VCO and synthesiser
50
VSS_VCO
–
Earth connections for VCO and synthesiser
51*
VDD_PRG (NC)
Input
Positive supply for battery backed memory (Not used)
52
PCM_OUT
Output
Synchronous data output
53
PCM_IN
Input
Synchronous data input
54
PCM_SYNC
Input/Output
Synchronous data sync
55
VDD_VCO
Input
Positive supply for VCO and synthesiser circutry
56*
LOOP_FILTER
–
Connection to external PLL loop filter (Do not connect) (Not used)
57*
NC
–
Not used
58*
AIO[0]
Input/Output
Programmable input/output line (Not used)
59*
AIO[1]
Input/Output
Programmable input/output line (Not used)
60*
VDD_MEM (NC)
Input
Positive supply for ROM memory and AIO ports (Not used)
61
UART_RTS
Output
UART request to send active low
62
UART_CTS
Input
UART clear to send active low
63
UART_RX
Input
UART data input active high
64
PCM_CLK
Input/Output
Synchronous data clock
65*
NC
–
Not used
66
VSS_ANA
–
Earth connections for analogue circuitry
67
XTAL_OUT
Output
Drive for crystal
68
VSS_ANA
–
Earth connections for analogue circuitry
69
AIO[2]
Input/Output
Programmable input/output line
70*
VDD_MEM (NC)
Input
Positive supply for ROM memory and AIO ports (Not used)
71*
VSS_MEM
–
Earth connections for ROM memory and AIO ports (Not used)
72*
USB_DP
Input/Output
USB data plus with selectable internal 1.5k ohms pull-up resistor (Not used)
73
VSS_USB
–
Earth connections for UART/USB ports
74
UART_TX
Output
UART data output active high
75*
NC
–
Not used
76
VSS_ANA
–
Earth connections for analogue circuitry
77
XTAL_IN
Input
For crystal or external clock input
78
VDD_ANA
Output
Positive supply for analogue circuitry and 1.8 V regulated output
79*
VREG_EN (NC)
Input
If not connected regulator enabled connect to VSS to disable regulator (Not used)
80
VREG_IN
Input
2.2-3.6 V voltage input
81*
VDD_MEM (NC)
Input
Positive supply for ROM memory and AIO ports (Not used)
82*
USB_DN
Input/Output
USB data minus (Not used)
83
VDD_USB
Input
Positive supply for UART/USB ports
84
VSS_USB
–
Earth connections for UART/USB ports
Pin No.
Terminal name
Input/Output
Description of terminal
Summary of Contents for GX15
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