ST10F269-T3 STMicroelectronics, ST10F269-T3 Datasheet - Page 64

• Manufacturer Part Number: ST10F269-T3
• Manufacturer: STMicroelectronics

Specifications of ST10F269-T3

• Cpu Family: ST10
• Device Core Size: 16b
• Frequency (max): 32MHz
• Interface Type: ASC/I2C/SSC
• Program Memory Type: Flash
• Program Memory Size: 256KB
• Total Internal Ram Size: 12KB
• # I/os (max): 111
• Number Of Timers - General Purpose: 4
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• On-chip Adc: 16-chx10-bit
• Instruction Set Architecture: CISC/RISC
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 144
• Package Type: TQFP
• Lead Free Status / Rohs Status: Supplier Unconfirmed

ST10F269-T3
12.4 - PORT1
The two 8-bit ports P1H and P1L represent the higher and lower part of PORT1, respectively. Both halves
of PORT1 can be written (via a PEC transfer) without effecting the other half.
If this port is used for general purpose I/O, the direction of each line can be configured via the
corresponding direction registers DP1H and DP1L.
P1L (FF04h / 82h)
P1H (FF06h / 83h)
DP1L (F104h / 82h)
DP1H (F106h / 83h)
12.4.1 - Alternate Functions of PORT1
When a demultiplexed external bus is enabled, PORT1 is used as address bus.
Note: Demultiplexed bus modes use PORT1 as a 16-bit port. Otherwise all 16 port lines can be used for
general purpose I/O.
The upper 4 pins of PORT1 (P1H.7...P1H.4) are used as capture input lines (CC27IO...CC24IO).
During external accesses in demultiplexed bus modes PORT1 outputs the 16-bit intra-segment address
as an alternate output function.
During external accesses in multiplexed bus modes, when no BUSCON register selects a demultiplexed
bus mode, PORT1 is not used and is available for general purpose I/O.
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P1X.y
DP1X.y
15
15
15
15
-
-
-
-
14
14
-
-
14
14
-
-
13
13
-
-
13
13
-
-
12
12
-
-
Port Data Register P1H or P1L Bit y
Port Direction Register DP1H or DP1L Bit y
DP1X.y = 0: Port line P1X.y is an input (high-impedance)
DP1X.y = 1: Port line P1X.y is an output
11
11
12
12
-
-
-
-
10
10
-
-
11
11
-
-
9
9
-
-
10
10
-
-
8
8
-
-
DP1H.7 DP1H.6 DP1H.5 DP1H.4 DP1H.3 DP1H.2 DP1H.1 DP1H.0
DP1L.7 DP1L.6 DP1L.5 DP1L.4 DP1L.3 DP1L.2 DP1L.1 DP1L.0
9
9
-
-
RW
RW
7
7
8
8
-
-
ESFR
ESFR
SFR
SFR
RW
RW
6
6
P1H.7 P1H.6 P1H.5 P1H.4 P1H.3 P1H.2 P1H.1 P1H.0
P1L.7 P1L.6 P1L.5 P1L4 P1L.3 P1L.2 P1L.1 P1L.0
RW
RW
7
7
RW
RW
5
5
RW
RW
6
6
RW
RW
RW
RW
5
5
4
4
RW
RW
4
4
RW
RW
3
3
RW
RW
3
3
RW
RW
2
2
Reset Value: --00h
Reset Value: --00h
Reset Value: --00h
Reset Value: --00h
RW
RW
2
2
RW
RW
1
1
RW
RW
1
1
RW
RW
RW
RW
0
0
0
0