ST10F269-DPB STMicroelectronics, ST10F269-DPB Datasheet - Page 58

• Manufacturer Part Number: ST10F269-DPB
• Description: MCU 16BIT 256K FLASH 144PQFP
• Manufacturer: STMicroelectronics
• Series: ST10r

Specifications of ST10F269-DPB

• Core Processor: ST10
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: CAN, EBI/EMI, SSC, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 111
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 144-BFQFP
• Processor Series: ST10F26x
• Core: ST10
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No

ST10F269
Figure 20 : Hysteresis for Special Input Thresholds
12.2.3 - Output Driver Control
The port output control registers POCONx allow
to select the port output driver characteristics of a
port. The aim of these selections is to adapt the
output drivers to the application’s requirements,
and to improve the EMI behaviour of the device.
Two characteristics may be selected:
Edge characteristic defines the rise/fall time for
the respective output. Slow edges reduce the
peak currents that are sinked/sourced when
changing the voltage level of an external
capacitive load. For a bus interface or pins that
are changing at frequency higher than 1MHz,
however, fast edges may still be required.
Driver characteristic defines either the general
driving capability of the respective driver, or if the
POCONx (F0yyh / zzh) for 8-bit Ports
POCONx (F0yyh / zzh) for 16-bit Ports
Note: In case of reading an 8 bit P0CONX register, high Byte ( bit 15..8) is read as 00h
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PNxEC
PNxDC
15
15
-
PN3DC
RW
Hysteresis
Bit
Input level
Bit state
14
14
-
13
13
-
PN3EC
Port Nibble x Edge Characteristic (rise/fall time)
00:
01:
10:
11:
Port Nibble x Driver Characteristic (output current)
00:
01:
10:
11:
RW
12
12
-
Fast edge mode, rise/fall times depend on the size of the driver.
Slow edge mode, rise/fall times ~60 ns
Reserved
Reserved
High Current mode:
Driver always operates with maximum strength.
Dynamic Current mode:
Driver strength is reduced after the target level has been reached.
Low Current mode:
Driver always operates with reduced strength.
Reserved
11
11
-
PN2DC
RW
10
10
-
9
9
-
PN2EC
RW
8
8
-
ESFR
ESFR
driver strength is reduced after the target output
level has been reached or not. Reducing the
driver strength increases the output’s internal
resistance,
imported via the output line. For driving LEDs or
power transistors, however, a stable high output
current may still be required as described below.
This rise / fall time of 4 I/O pads (a nibble) is
selected using 2-bit named PNxEC. That means
Port Nibble (x = nibble number, it could be 3 as for
Port 2.15 to 2.12) Edge Characteristic.
The sink / source capability of the same 4 I/O
pads is selected using 2-bit named PNxDC. That
means Port Nibble (x = nibble number) Drive
Characteristic (See Table 14).
7
7
PN1DC
PN1DC
Function
RW
RW
6
6
which
5
5
PN1EC
PN1EC
RW
RW
4
4
attenuates
3
3
PN0DC
PN0DC
RW
RW
Reset Value: 0000h
Reset Value: --00h
2
2
noise
1
1
PN0EC
PN0EC
RW
RW
that
0
0
is