WT21 View Datasheet(PDF) - Unspecified
Part Name
Description
MFG CO.
'WT21' PDF : 54 Pages View PDF
Pin Name / Group
I/O Type
Reset / Control
RST#
Digital Input
No Core Voltage Reset
Pull R
I/O
Full Chip Reset
Pull R
I/O
PU
Input
PU
Input
Pin Name / Group
I/O Type
Digital Interfaces - SDIO
SDIO_DATA[3]
Digital bi-directional
SDIO_DATA[2]
Digital bi-directional
SDIO_DATA[1]
Digital bi-directional
SDIO_DATA[0]
Digital bi-directional
SDIO_SD_CS#
Digital bi-directional
SDIO_CMD
Digital bi-directional
SDIO_CLK
Digital bi-directional
No Core Voltage Reset
Pull R
I/O
PD
Input
PD
Input
PD
Input
PD
Input
PD
Input
PD
Input
PD
Input
Full Chip Reset
Pull R
I/O
PU
Input
PU
Input
PU
Input
PU
Input
PU
Input
PU
Input
PU
Input
Pin Name / Group
PCM Interface
PCM_IN
PCM_OUT
PCM_CLK
PCM_SYNC
I/O Type
No Core Voltage Reset
Pull R
I/O
Digital Input
PD
Digital tri-state output
PD
Digital bidirectional
PD
Digital bidirectional
PD
Input
High
impedance
Input
Input
Full Chip Reset
Pull R
I/O
PD
Input
PD
High
impedance
PD
Input
PD
Input
Pin Name / Group
SPI Interface
SPI_MOSI
SPI_CLK
SPI_CS#
SPI_MISO
I/O Type
No Core Voltage Reset
Pull R
I/O
Digital input
PD
Digital input
PD
Digital input
PU
Digital tri-state output
PD
Input
Input
PU
PD
Full Chip Reset
Pull R
I/O
PD
Input
PD
Input
PU
Input
PD
High
impedance
Pin Name / Group
PIOs
PIO[0]
PIO[1]
PIO[2]
PIO[3]
PIO[4]
PIO[5]
PIO[7]
PIO[9]
I/O Type
No Core Voltage Reset
Pull R
I/O
Digital bi-directional
PD
Digital bi-directional
PD
Digital bi-directional
PD
Digital bi-directional
PD
Digital bi-directional
PD
Digital bi-directional
PD
Digital bi-directional
PD
Digital bi-directional
PD
Input
Input
Input
Input
Input
Input
Input
Input
Full Chip Reset
Pull R
I/O
PD
Input
PD
Input
PD
Input
PD
Input
PD
Input
PD
Input
PD
Input
PD
Input
Pin Name / Group
I/O Type
Clock
CLK_32K
Digital input
No Core Voltage Reset
Pull R
I/O
Full Chip Reset
Pull R
I/O
PD
Input
PD
Input
Table 21: Pin States of WT21 on Reset
Bluegiga Technologies Oy
Page 43 of 56
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