P83CL883T Просмотр технического описания (PDF) - Philips Electronics
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P83CL883T Datasheet PDF : 32 Pages
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Philips Semiconductors
TELX microcontrollers for CT0
handset/basestation applications
Product specification
P8xCL883; P8xCL884
Tables 2 and 3 show the configuration register settings for
the 4 port output types.
The electrical characteristics of each output type can be
found in Chapter 8. The default port configuration after
reset is given in Table 3.
Table 2 Port Configuration Registers PnCFGA and PnCFGB (n = 0 to 3) settings
MODE(1)
Mode 0
Mode 1
Mode 2
Mode 3
PnCFGA
0
1
0
1
PnCFGB
0
0
1
1
PORT OUTPUT MODE
NORMAL PORTS
I2C-BUS PORTS (P1.6 AND P1.7)
open-drain
open-drain
quasi-bidirectional
high-impedance
open-drain
high-impedance
push-pull
open-drain
Note
1. Mode changes may cause glitches to occur during transitions. When modifying both registers, WRITE instructions
should be carried out consecutively.
Table 3 Special Function Registers for port configurations/data
REGISTER NAME
Port P0 output data(1)
Port P0 configuration A
Port P0 configuration B
Port P1 output data(1)
Port P1 configuration A
Port P1 configuration B
Port P3 output data(1)
Port P3 configuration A
Port P3 configuration B
REGISTER MNEMONIC
P0
P0CFGA
P0CFGB
P1
P1CFGA
P1CFGB
P3
P3CFGA
P3CFGB
SFR ADDRESS (HEX)
80
8E
8F
90
9E
9F
B0
BE
BF
STATE AFTER RESET
1111 1111
1111 1111
0000 0000
1111 1111
0011 1111
0000 0000
XXX1 XX11(2)
XXX1 XX11(2)
XXX0 XX00(2)
Notes
1. This means that P0, P1.0 to P1.5 and P3 are initialized in Mode 1 (quasi-bidirectional, driving a weak HIGH) and the
I2C-bus ports P1.6 and P1.7 are initialized in Mode 0 (open-drain, not driven).
2. Port pin P3.4 is only available on P8xCL883.
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