SAF-C164SM Infineon Technologies, SAF-C164SM Datasheet - Page 38
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SAF-C164SM
Manufacturer Part Number
SAF-C164SM
Description
16-Bit CMOS Microcontroller
Manufacturer
Infineon Technologies
Datasheet
1.SAF-C164SM.pdf
(470 pages)
- Current page: 38 of 470
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2.6
The C164CM provides a special mechanism to protect bits which can be modified by the
on-chip hardware from being changed unintentionally by software accesses to related
bits (see also
The following bits are protected:
Table 2-1
Register
T2IC, T3IC, T4IC
T3CON
T7IC, T8IC
S0TIC, S0TBIC
S0RIC, S0EIC
S0CON
SSCTIC, SSCRIC
SSCEIC
SSCCON
SSCCON
SSCCON
ADCIC, ADEIC
ADCON
CC31IC … CC16IC CC31IR … CC16IR Fast external interrupt request flags
TFR
TFR
P1H
P8
ISNC
XP0IC, XP3IC
User’s Manual
= 62 protected bits.
Protected Bits
Chapter
C164CM Protected Bits
Bit Name
T2IR, T3IR, T4IR
T3OTL
T7IR, T8IR
S0TIR, S0TBIR
S0RIR, S0EIR
S0REN
SSCTIR, SSCRIR
SSCEIR
SSCBSY
SSCBE, SSCPE
SSCRE, SSCTE
ADCIR, ADEIR
ADST, ADCRQ
TFR.15, 14, 13
TFR.7, 3, 2, 1, 0
P1H.7 … P1H.0
P8.3 … P8.0
RTCIR
XP0IR, XP3IR
4).
2-21
Notes
GPT1 timer interrupt request flags
GPT1 timer output toggle latches
CAPCOM2 timer interrupt request flags
ASC0 transmit (buffer) interrupt request
flags
ASC0 receive/error interrupt request flags
ASC0 receiver enable flag
SSC transmit/receive interrupt request flags
SSC error interrupt request flag
SSC busy flag
SSC error flags
SSC error flags
ADC end-of-conv./overrun intr. request flag
ADC start flag/injection request flag
Class A trap flags
Class B trap flags
Those bits of PORT1 used for CAPCOM2
All bits of Port 8 used for CAPCOM2
Interrupt node sharing request flag
CAN and PLL/RTC interrupt request flags
Architectural Overview
C164CM/C164SM
Derivatives
V1.0, 2002-02
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