STR710F STMICROELECTRONICS [STMicroelectronics], STR710F Datasheet - Page 17

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

Table 3. STR710 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
3. In reset state, these pins configured as Input PU/PD with weak pull-down enabled to output
Address 0x0000 0000 using the External Memory Interface. To access memory banks greater
than 1Mbyte, they need to be configured by software as Alternate Function (see
Bit Configuration Table,” on page
136 B5
137 C5 WE.0
138 A3
139 A2
140 D5 P0.5/S1.MOSI I/O pu C
141 A4
142 B4
143 C4
144 B3
Pin n°
WE.1
V
V
P0.6/S1.SCLK I/O pu C
P0.7/S1.SS
P0.8/U0.RX/
U0.TX
P0.9/U0.TX/
BOOT.0
26) to be used by the External Memory Interface.
33
SS
Pin Name
I/O pu C
I/O pd C
I/O pd C
S
S
O
O
Input
T
T
T
T
T
X 4mA X
X 4mA T
26).
8mA
8mA
4mA X
4mA X
4mA X
Output
X
X
X
X
function
External Memory Interface: active low MSB write ena-
ble output
External Memory Interface: active low LSB write enable
output
Supply voltage for digital I/Os
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
26. The Port bit configuration at reset is
Main
Table 7, “Port Bit Configuration Table,”
UART0: Receive
Data input
Select Boot Con-
figuration input
STR71xF - INTRODUCTION
Alternate function
UART0: Transmit data
output.
UART0: Transmit data
output
Table 7, “Port
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