MC56F8345 Freescale Semiconductor, Inc, MC56F8345 Datasheet - Page 47

• Manufacturer Part Number: MC56F8345
• Description: 56f8300 16-bit Digital Signal Controllers
• Manufacturer: Freescale Semiconductor, Inc

4.7 Peripheral Memory Mapped Registers
On-chip peripheral registers are part of the data memory map on the 56800E series. These locations may
be accessed with the same addressing modes used for ordinary Data memory, except all peripheral
registers should be read/written using word accesses only.
Table 4-9
Peripherals are listed in order of the base address.
The following tables list all of the peripheral registers required to control or access the peripherals.
Note: Features in italics are NOT available in the 56F8145 device.
Freescale Semiconductor
Preliminary
X:$FF FFFC
X:$FF FFFD
X:$FF FF9A
X:$FF FF9B
X:$FF FF9C
X:$FF FF9D
X:$FF FF9E
X:$FF FFA0
X:$FF FFFE
X:$FF FFFF
X:$FF FF90
X:$FF FF91
X:$FF FF92
X:$FF FF93
X:$FF FF94
X:$FF FF95
X:$FF FF96
X:$FF FF97
X:$FF FF98
X:$FF FF99
X:$FF FF9F
summarizes base addresses for the set of peripherals on the 56F8345 and 56F8145 devices.
Address
Table 4-8 EOnCE Memory Map (Continued)
OCR (bits)
OBMSK (32 bits)
—
OBAR2 (32 bits)
—
OBAR1 (24 bits)
—
OBCR (24 bits)
—
OTB (21-24 bits/stage)
—
OTBPR (8 bits)
OTBCR
OBASE (8 bits)
OSR
OSCNTR (24 bits)
—
OCLSR (8 bits)
OTXRXSR (8 bits)
OTX / ORX (32 bits)
OTX1 / ORX1
Register Acronym
56F8345 Technical Data, Rev. 17
Reserved
Breakpoint 1 Unit [0] Mask Register
Breakpoint 1 Unit [0] Mask Register
Breakpoint 2 Unit [0] Address Register
Breakpoint 2 Unit [0] Address Register
Breakpoint 1 Unit [0] Address Register
Breakpoint 1 Unit [0] Address Register
Breakpoint Unit [0] Control Register
Breakpoint Unit [0] Control Register
Trace Buffer Register Stages
Trace Buffer Register Stages
Trace Buffer Pointer Register
Trace Buffer Control Register
Peripheral Base Address Register
Status Register
Instruction Step Counter
Instruction Step Counter
Control Register
Reserved
Core Lock / Unlock Status Register
Transmit and Receive Status and Control Register
Transmit Register / Receive Register
Transmit Register Upper Word
Receive Register Upper Word
Register Name
Peripheral Memory Mapped Registers
47