SAF-XC878-13FFI 5V AA Infineon Technologies, SAF-XC878-13FFI 5V AA Datasheet - Page 36
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SAF-XC878-13FFI 5V AA
Manufacturer Part Number
SAF-XC878-13FFI 5V AA
Description
IC MCU 8BIT FLASH 64-LQFP
Manufacturer
Infineon Technologies
Series
XC8xxr
Specifications of SAF-XC878-13FFI 5V AA
Core Processor
XC800
Core Size
8-Bit
Speed
27MHz
Connectivity
SPI, SSI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
40
Program Memory Size
52KB (52K x 8)
Program Memory Type
FLASH
Ram Size
3.25K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 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
-
Other names
SP000447274
- Current page: 36 of 145
- Download datasheet (3Mb)
Figure 10
In order to access a register located in a page different from the actual one, the current
page must be exited. This is done by reprogramming the bit field PAGE in the page
register. Only then can the desired access be performed.
If an interrupt routine is initiated between the page register access and the module
register access, and the interrupt needs to access a register located in another page, the
current page setting can be saved, the new one programmed and the old page setting
restored. This is possible with the storage fields STx (x = 0 - 3) for the save and restore
action of the current page setting. By indicating which storage bit field should be used in
parallel with the new page value, a single write operation can:
•
Data Sheet
Save the contents of PAGE in STx before overwriting with the new value
(this is done in the beginning of the interrupt routine to save the current page setting
and program the new page number); or
Address Extension by Paging
(to/from CPU)
SFR Address
(from CPU)
SFR Data
rw
MOD_PAGE.PAGE
29
Module
SFR0
SFR1
SFRx
SFR0
SFR1
SFRy
SFR0
SFR1
SFRz
Functional Description
PAGE 0
PAGE 1
PAGE q
XC87xCLM
V1.5, 2011-03
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