SAF-XC878CM-16FFI 3V3 AC Infineon Technologies, SAF-XC878CM-16FFI 3V3 AC Datasheet - Page 33
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SAF-XC878CM-16FFI 3V3 AC
Manufacturer Part Number
SAF-XC878CM-16FFI 3V3 AC
Description
IC MCU 8BIT 64KB FLASH 64LQFP
Manufacturer
Infineon Technologies
Series
XC8xxr
Specifications of SAF-XC878CM-16FFI 3V3 AC
Core Processor
XC800
Core Size
8-Bit
Speed
27MHz
Connectivity
CAN, SPI, SSI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
40
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
3.25K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-LFQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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3.2.2
The Special Function Registers (SFRs) occupy direct internal data memory space in the
range 80
SFRs include pointers and registers that provide an interface between the CPU and the
on-chip peripherals. As the 128-SFR range is less than the total number of registers
required, address extension mechanisms are required to increase the number of
addressable SFRs. The address extension mechanisms include:
•
•
3.2.2.1
Address extension is performed at the system level by mapping. The SFR area is
extended into two portions: the standard (non-mapped) SFR area and the mapped SFR
area. Each portion supports the same address range 80
addressable SFRs to 256. The extended address range is not directly controlled by the
CPU instruction itself, but is derived from bit RMAP in the system control register
SYSCON0 at address 8F
SYSCON0 must be set. Alternatively, the SFRs in the standard area can be accessed
by clearing bit RMAP. The SFR area can be selected as shown in
As long as bit RMAP is set, the mapped SFR area can be accessed. This bit is not
cleared automatically by hardware. Thus, before standard/mapped registers are
accessed, bit RMAP must be cleared/set, respectively, by software.
Data Sheet
Mapping
Paging
H
to FF
Special Function Register
Address Extension by Mapping
H
. All registers, except the program counter, reside in the SFR area. The
H
. To access SFRs in the mapped area, bit RMAP in SFR
26
H
to FF
H
Functional Description
, bringing the number of
Figure
9.
XC87xCLM
V1.5, 2011-03
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