Product Info

Bluegiga Technologies Oy
Page 11 of 54
SPI
INTERFACE
PIN
NUMBER
PAD TYPE DESCRIPTION
PCM_OUT 36
Output, tri-state, weak
internal pull-down
Synchronous data output
PCM_IN 37
Input, weak internal pull-
down
Synchronous data input
PCM_SYNC 34
Bi-directional, weak
internal pull-down
Synchronous data sync
PCM_CLK 35
Bi-directional, weak
internal pull-down
Synchronous data clock
Table 4: Terminal Descriptions
SDIO/CSPI/UA
RT Interfaces
PIN
NUMBER
PAD TYPE DESCRIPTION
SDIO_DATA
[
0
]
S
y
nchronous data in
p
ut/out
p
ut
CSPI_MISO CSPI data out
p
ut
UART_TX UART data output, active high
SDIO_DATA
[
1
]
S
y
nchronous data in
p
ut/out
p
ut
CSPI_INT CSPI data in
p
ut
UART_RTS# UART request to send, active low
SDIO_DATA
[
2
]
S
y
nchronous data in
p
ut/out
p
ut
UART_RX UART data input, active high
SDIO_DATA
[
3
]
S
y
nchronous data in
p
ut/out
p
ut
CSPI_CS#
Chip select for CSR Serial Peripheral
Interface
,
active low
UART_CTS# UART clear to send, active low
SDIO_CLK SDIO clock
CSPI_CLK CSPI clock
SDIO_SD_CS# 31
Bi-directional,
weak internal pull-
down
SDIO chip select to allow SDIO accessess
SDIO_CMD SDIO data in
p
ut
CSPI_MOSI CSPI data input
25
Bi-directional, tri-
state, weak
internal
p
ull-down
26
Bi-directional,
weak internal pull-
down
27
Bi-directional,
weak internal pull-
29
Bi-directional,
weak internal pull-
down
30
Bi-directional,
weak internal pull-
32
Bi-directional,
weak internal pull-
Table 5: Terminal Descriptions
SPI
INTERFACE
PIN
NUMBER
PAD TYPE DESCRIPTION
SPI_MOSI 41 Weak internal
p
ull-down SPI data in
p
ut
SPI_CS# 40
Bi-directional, weak
internal pull-down
Chip select for Serial Peripheral
Interface, active low
SPI_CLK 39
Bi-directional, weak
internal pull-down
SPI clock
SPI_MISO 38
Output, tri-state, weak
internal pull-down
SPI data output
Table 6: Terminal Descriptions