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