MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 239

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TB — Time Base (Reading)
TB — Time Base (Writing)
6.13.4.3 Time Base Reference Registers
TBREF0 — Time Base Reference Register 0
TBREF1 — Time Base Reference Register 1
6.13.4.4 Time Base Control and Status Register
MPC555
USER’S MANUAL
MSB
MSB
MSB
MSB
0
0
0
0
initialization. The contents of the register may be written by the mttbl or the mttbu in-
structions, see
Refer to
(TB) — OEA
Two reference registers (TBREF0 and TBREF1) are associated with the lower part of
the time base (TBL). Each is a 32-bit read/write register. Upon a match between the
contents of TBL and the reference register, a maskable interrupt is generated.
The TBSCR is 16-bit read/write register. It controls the TB, decrementer count enable,
and interrupt generation and is used for reporting the source of the interrupts. The reg-
ister can be read anytime. A status bit is cleared by writing a one to it. (Writing a zero
has no effect.) More than one bit can be cleared at a time.
/
MPC556
3.8 PowerPC VEA Register Set — Time Base
for more information on reading and writing the TBU and TBL registers.
3.9.4 Time Base Facility (TB) —
TBU
TBU
SYSTEM CONFIGURATION AND PROTECTION
Rev. 15 October 2000
RESET: UNCHANGED
RESET: UNCHANGED
TBREF0
TBREF1
RESET:
RESET:
31 32
31 32
OEA.
and
3.9.4 Time Base Facility
TBL
TBL
SPR 268, 269
SPR 284, 285
0x2F C204
0x2F C208
MOTOROLA
LSB
LSB
LSB
6-31
63
63
31
LSB
31