MC68HC11EA9 Datasheet, PDF (25/58 Pages) Motorola, Inc – 8 BIT HCMOS SINGLE CHIP MICROCONTOROLLER WITH A/D CONVERTER

Freescale Semiconductor, Inc.
Table 9 Highest I-Bit Interrupt Source Selection
PSEL3 PSEL2 PSEL1 PSEL0
Interrupt Source Promoted
0
0
0
0
Timer Overflow
0
0
0
1
Pulse Accumulator Overflow
0
0
1
0
Pulse Accumulator Input Edge
0
0
1
1
Reserved (Default to IRQ)
0
1
0
0
SCI Serial System
0
1
0
1
Reserved (Default to IRQ)
0
1
1
0
IRQ (External Pin)
0
1
1
1
Real-Time Interrupt
1
0
0
0
Timer Input Capture 1
1
0
0
1
Timer Input Capture 2
1
0
1
0
Timer Input Capture 3
1
0
1
1
Timer Output Compare 1
1
1
0
0
Timer Output Compare 2
1
1
0
1
Timer Output Compare 3
1
1
1
0
Timer Output Compare 4
1
1
1
1
Timer IC4/OC5
PSEL[3:0] reset to %0101, making IRQ the highest priority I-bit related interrupt source.
CONFIG — Security, COP, ROM/EPROM, and EEPROM Enables
BIT 7
6
5
4
3
2
—
—
—
—
NOSEC NOCOP
RESET:
—
—
—
0
0
1
1
ROMON
0
Bits [7:4] — Not Implemented
Always read zero
NOSEC — EEPROM Security Mode Disable
Refer to 4.10.3 EEPROM Security
NOCOP — COP System Disable
0 = COP system enabled (forces reset on timeout)
1 = COP system disabled
ROMON — ROM/EPROM Enable
Refer to 4 Operating Modes and On-Chip Memory.
EEON — EEPROM Enable
Refer to 4.10 EEPROM
BIT 0
EEON
1
$103F
MC68HC11EA9
MC68HC11EA9TS/D
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