STR710F STMICROELECTRONICS [STMicroelectronics], STR710F Datasheet - Page 24

• Manufacturer Part Number: STR710F
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STR71xF - INTRODUCTION
Table 6. STR711/STR712/STR715 Pin Description
1. The Reset configuration of the I/O Ports is IPUPD (input pull-up/pull down). Refer to
Table 7, “Port Bit Configuration Table,” on page
PC0=1, PC1=1, PC2=0. The port data register bit (PD) value depends on the pu/pd column
which specifies whether the pull-up or pull-down is enabled at reset
2. In reset state, these pins configured as Input PU/PD with weak pull-up enabled. They must
be configured by software as Alternate Function (see
on page
24/49
53 B6
54 A5
55 C6
56 B5 P0.4/S1.MISO I/O pu C
57 A4 V
58 C5 V
59 B4 V
60 A3 P0.5/S1.MOSI I/O pu C
61 D5 P0.6/S1.SCLK I/O pu C
62 B3 P0.7/S1.SS
63 C4
64 A2
Pin n°
P0.1/S0.MOSI/
U3.RX
P0.2/
S0.SCLK/
I1.SCL
P0.3/S0.SS/
I1.SDA
P0.8/U0.RX/
U0.TX
P0.9/U0.TX/
BOOT.0
26) to be used by the External Memory Interface.
SS18
18
SS
Pin Name
I/O pu C
I/O pu C
I/O pu C
I/O pu C
I/O pd C
I/O pd C
S
S
S
Input
T
T
T
T
T
T
T
T
T
X 4mA X
X 4mA X
X 4mA X
X 4mA T
4mA X
4mA X
4mA X
4mA X
4mA X
Output
X
X
X
X
X
X
X
X
function
Port 0.1
Port 0.2
Port 0.3
Port 0.4 SPI1: Master in/Slave out data
Stabilisation for main voltage regulator.
Stabilisation for main voltage regulator. Requires exter-
nal capacitors of at least 10µF + 33nF between V
V
Ground voltage for digital I/Os
Port 0.5 SPI1: Master out/Slave In data
Port 0.6 SPI1: Serial Clock
Port 0.7 SPI1: Slave Select input active low
Port 0.8
Note: This pin may be used for single wire UART (half
duplex) if programmed as Alternate Function Output.
The pin will be tri-stated except when UART transmis-
sion is in progress
Port 0.9
reset)
(after
Main
SS18
26. The Port bit configuration at reset is
. See
Table 7, “Port Bit Configuration Table,”
BSPI0: Master
out/Slave in data
Note: Programming AF function selects
UART by default. BSPI must be enabled by
SPI_EN bit in the BOOTCR register.
BSPI0: Serial
Clock
Note: Programming AF function selects I2C
by default. BSPI must be enabled by SPI_EN
bit in the BOOTCR register.
SPI0: Slave Se-
lect input active
low.
Note: Programming AF function selects I2C
by default. BSPI must be enabled by SPI_EN
bit in the BOOTCR register.
UART0: Receive
Data input
Select Boot Con-
figuration input
Figure
5.
Alternate function
UART3: Receive Data in-
put
I2C1: Serial clock
I2C1: Serial Data
UART0: Transmit data
output.
UART0: Transmit data
output
18
and