
OPERATING MODES AND SIGNAL DESCRIPTION
2-4
2.1.4.1 Factory Test Register (TEST1)
TILOP TPWSL OCCR
CBYP1
DISR
FCM
FCOP
CBYP2
TEST1
$103E
76543210
00000000
RESET:
READ:
Any time (always zero if not in a test mode)
WRITE:
Only while SMOD = 1 (TEST or BOOT modes)
TILOP — Test Illegal Opcode
0 – Normal operation (trap on illegal opcodes)
1 – Stop giving LIR when an illegal opcode is found
This test mode allows testing of all illegal opcodes serially without servicing an
interrupt after each illegal opcode is received. LIR (inactive for illegal opcodes) is
used to monitor correct CPU operation.
TPWSL — Pulse Width Modulation Scaled Clock
0 – Normal operation
1 – Clock S (Scaled) from the PWM timer is output to and readable on the PWSCAL
register. Normal writing of the PWSCAL register will still function.
OCCR — Output Condition Code Register Status to Timer Port
0 – Normal operation
1 – The Condition Code bits H, N, Z, V, and C are driven out of the 5 most significant
bits (bits 3 – 7, respectively) of the timer I/O port to allow the test system to
monitor CPU operation.
CBYP1 — Timer Counter 1 Divider Chain By-pass
0 – Normal operation
1 – 16-bit free running timer counter 1 is divided into 8-bit halves and the prescaler is
by-passed. The system E-clock drives both halves directly.
DISR — Disable Resets from COP and Clock Monitor
0 – Normal operation
1 – Regardless of other control bit states, COP and clock monitor will not generate a
system reset.
When the device is reset in test or bootstrap mode (SMOD = 1), the DISR bit is initialized
to 1 so that resets from the COP and clock monitor are disabled. When reset in normal
modes, the DISR bit is initialized to 0.
FCM — Force Clock Monitor Failure
0 – Normal operation
1 – Immediately generates a Clock Monitor failure reset. Note that the CME bit must
also be set for the reset to be forced.
Freescale
Semiconductor,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
nc.
..
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
MC68HC11G5,
MC68HC11G7,
MC68HC711G5