STM32W108CZ STMicroelectronics, STM32W108CZ Datasheet - Page 80

• Manufacturer Part Number: STM32W108CZ
• Description: High-performance, IEEE 802.15.4 wireless system-on-chip with embedded Flash memory
• Manufacturer: STMicroelectronics

Specifications of STM32W108CZ

• Receive Current (w/ Cpu): 27 mA
• Transmit Current (w/ Cpu, +3 Dbm Tx): 31 mA
• Low Deep Sleep Current, With Retained Ram And Gpio: 400 nA/800 nA with/without sleep timer
• Standard Arm Debug Capabilities: Flash patch & breakpoint; data watchpoint & trace; instrumentation trace macrocell
• Single Voltage Operation: 2.1-3.6 V with internal 1.8 V and 1.25 V regulators

Serial interfaces
Table 43.
1. The notation xxx means that the corresponding column header below is inserted to form the field name.
9.3.2
80/232
MST
1
1
1
1
1
SCx_SPICFG
SC_SPIxxx
ORD
0
0
0
0
1
SPI master mode formats
Operation
Characters transmitted and received by the SPI master controller are buffered in transmit
and receive FIFOs that are both 4 entries deep. When software writes a character to the
SCx_DATA register, the character is pushed onto the transmit FIFO. Similarly, when
software reads from the SCx_DATA register, the character returned is pulled from the
receive FIFO. If the transmit and receive DMA channels are used, they also write to and
read from the transmit and receive FIFOs.
When the transmit FIFO and the serializer are both empty, writing a character to the transmit
FIFO clears the SC_SPITXIDLE bit in the SCx_SPISTAT register. This indicates that some
characters have not yet been transmitted. If characters are written to the transmit FIFO until
it is full, the SC_SPITXFREE bit in the SCx_SPISTAT register is cleared. Shifting out a
character to the MOSI pin sets the SC_SPITXFREE bit in the SCx_SPISTAT register. When
the transmit FIFO empties and the last character has been shifted out, the SC_SPITXIDLE
bit in the SCx_SPISTAT register is set.
PHA
0
0
1
1
-
(1)
POL
0
1
0
1
-
Same as above except data is sent LSB first instead of MSB first.
SCLK
MOSI
MISO
SCLK
MOSI
SCLK
MOSI
SCLK
MOSI
MISO
MISO
MISO
out
out
in
out
out
in
out
out
out
out
in
in
STM32W108HB STM32W108CC STM32W108CB STM32W108CZ
Doc ID 16252 Rev 13
RX[7]
TX[7]
RX[7]
TX[7]
TX[7]
RX[7]
RX[7]
TX[7]
TX[6]
RX[6]
TX[6]
RX[6]
RX[6]
TX[6]
TX[6]
RX[6]
RX[5]
TX[5]
RX[5]
TX[5]
RX[5]
RX[5]
TX[5]
TX[5]
Frame formats
RX[4]
TX[4]
RX[4]
TX[4]
TX[4]
RX[4]
RX[4]
TX[4]
TX[3]
RX[3]
TX[3]
RX[3]
TX[3]
RX[3]
TX[3]
RX[3]
RX[2]
TX[2]
RX[2]
TX[2]
RX[2]
RX[2]
TX[2]
TX[2]
RX[1]
TX[1]
RX[1]
TX[1]
RX[1]
RX[1]
TX[1]
TX[1]
TX[0]
RX[0]
TX[0]
RX[0]
TX[0]
RX[0]
RX[0]
TX[0]