ST10F269 Datasheet, PDF (59/160 Pages) STMicroelectronics – 16-BIT MCU WITH MAC UNIT, 256K BYTE FLASH MEMORY AND 12K BYTE RAM

ST10F269
The table lists the defined POCON registers and the allocation of control bit-fields and port pins.
Table 14 : Port Control Register Allocation
Control
Register
POCON0L
POCON0H
POCON1L
POCON1H
POCON2
POCON3
POCON4
POCON6
POCON7
POCON8
Physical
Address
F080h
F082h
F084h
F086h
F088h
F08Ah
F08Ch
F08Eh
F090h
F092h
8-bit
Address
40h
41h
42h
43h
44h
45h
46h
47h
48h
49h
3
P2.15...12
P3.15, 3.13, 3.12
Controlled Port Nibble
2
P2.11...8
P3.11...8
1
P0L.7...4
P0H.7...4
P1L.7...4
P1H.7...4
P2.7...4
P3.7...4
P4.7...4
P6.7...4
P7.7...4
P8.7...4
0
P0L.3...0
P0H.3...0
P1L.3...0
P1H.3...0
P2.3...0
P3.3...0
P4.3...0
P6.3...0
P7.3...0
P8.3...0
Dedicated Pins Output Control
Programmable pad drivers also are supported for the dedicated pins ALE, RD and WR. For these pads,
a special POCON20 register is provided.
POCON20 (F0AAh / 55h)
15 14 13 12 11 10 9
-
-
-
-
-
-
-
ESFR
8
7
6
-
PN1DC
RW
5
4
PN1EC
RW
Reset Value: --00h
3
2
PN0DC
RW
1
0
PN0EC
RW
PN0EC
PN0DC
PN1EC
PN1DC
RD, WR Edge Characteristic (rise/fall time)
00: Fast edge mode, rise/fall times depend on the size of the driver.
01: Slow edge mode, rise/fall times ~60 ns
10: Reserved
11: Reserved
RD, WR Driver Characteristic (output current)
00: High Current mode:
Driver always operates with maximum strength.
01: Dynamic Current mode:
Driver strength is reduced after the target level has been reached.
10: Low Current mode:
Driver always operates with reduced strength.
11: Reserved
ALE Edge Characteristic (rise/fall time)
00: Fast edge mode, rise/fall times depend on the size of the driver.
01: Slow edge mode, rise/fall times ~60 ns
10: Reserved
11: Reserved
ALE Driver Characteristic (output current)
00: High Current mode:
Driver always operates with maximum strength.
01: Dynamic Current mode:
Driver strength is reduced after the target level has been reached.
10: Low Current mode:
Driver always operates with reduced strength.
11: Reserved
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