XC822_11 Datasheet, PDF (21/52 Pages) Infineon Technologies AG – 8-Bit Single-Chip Microcontroller

XC822/824
General Device Information
Table 3
Pin Definitions and Functions for XC822/824
Symbol Pin
Number
DSO20/
TSSOP16
Type
Reset Function
State
P2.3 4/3
Hi-Z CCPOS0_2 CCU6 Hall Input 0
CTRAP_2 CCU6 Trap Input
T2_2
Timer 2 Input
EXINT3
External Interrupt Input 3
AN3
Analog Input 3 /
Out of range comparator channel 3
V_DDP
12/9
–
V_DDC
14/11
–
V_SSP/ 13/10
–
V_SSC
I/O Port Supply (2.5 V - 5.5 V)
Core Supply Output (2.5 V)
I/O Port Ground/
Core Supply Ground
2.5
Memory Organization
The XC822/824 CPU operates in the following five address spaces:
• 8 Kbytes of Boot ROM, Library ROM and User routines
• 256 bytes of internal RAM
• 256 bytes of XRAM
(XRAM can be read/written as program memory or external data memory)
• A 128-byte Special Function Register area
• 2/4 Kbytes of Flash
Figure 6 illustrates the memory address spaces of the 2 Kbyte Flash devices. There are
two 1-Kbyte sectors in this device. Figure 7 illustrates the memory address spaces of
the 4 Kbyte Flash devices. This device has two 1-Kbyte sectors, two 512-byte sectors,
two 256-byte sectors and four 128-byte sectors. Figure 8 shows the Flash sectorization
for 2 Kbyte and 4 Kbyte Flash devices.
Data Sheet
15
V1.2, 2011-10