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38C3 Datasheet(PDF) 27 Page - Renesas Technology Corp

Part # 38C3
Description  8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES
PDF  224 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

38C3 Datasheet(HTML) 27 Page - Renesas Technology Corp

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38C3 Group User’s Manual
HARDWARE
1-12
MEMORY
Special Function Register (SFR) Area
The Special Function Register area in the zero page contains control
registers such as I/O ports and timers.
RAM
RAM is used for data storage and for stack area of subroutine calls
and interrupts.
ROM
The first 128 bytes and the last 2 bytes of ROM are reserved for
device testing and the rest is user area for storing programs.
Interrupt Vector Area
The interrupt vector area contains reset and interrupt vectors.
Zero Page
Access to this area with only 2 bytes is possible in the zero page
addressing mode.
Special Page
Access to this area with only 2 bytes is possible in the special page
addressing mode.
Fig. 8 Memory map diagram
FUNCTIONAL DESCRIPTION
192
256
384
512
640
768
896
1024
00FF16
013F16
01BF16
023F16
02BF16
033F16
03BF16
043F16
RAM area
RAM size
(bytes)
Address
XXXX16
4096
8192
12288
16384
20480
24576
28672
32768
36864
40960
45056
49152
F00016
E00016
D00016
C00016
B00016
A00016
900016
800016
700016
600016
500016
400016
F08016
E08016
D08016
C08016
B08016
A08016
908016
808016
708016
608016
508016
408016
ROM area
ROM size
(bytes)
Address
YYYY16
Address
ZZZZ16
005816
000016
004016
044016
FF0016
FFDC16
FFFE16
FFFF16
XXXX16
YYYY16
ZZZZ16
RAM
ROM
005016
Reserved area
SFR area 1
Not used
Interrupt vector area
Reserved ROM area
(128 bytes)
Zero page
Special page
LCD display RAM area
Reserved ROM area
ROM corrective RAM area
010016
(Note 1)
SFR area 2 (Note 1)
0F0016
0FFF16
Note 1 : This is valid only in mask ROM version.



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