M37477M4T 데이터 시트보기 (PDF) - Renesas Electronics
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M37477M4T Datasheet PDF : 48 Pages
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MITSUBISHI MICROCOMPUTERS
7477/7478 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MEMORY
• Special Function Register (SFR) Area
The special function register (SFR) area contains the registers
relating to functions such as I/O ports and timers.
• RAM
RAM is used for data storage as well as a stack area.
• ROM
ROM is used for storing user programs as well as the interrupt
vector area.
• Interrupt Vector Area
The interrupt vector area is for storing jump destination ad-
dresses used at reset or when an interrupt is generated.
• Zero Page
Zero page addressing mode is useful because it enables access
to this area with fewer instruction cycles.
• Special Page
Special page addressing mode is useful because it enables ac-
cess to this area with fewer instruction cycles.
RAM (192 bytes)
for
M37477M4
M37477M8/E8
M37478M4
M37478M8/E8
RAM (128 bytes)
for
M37477M2T
M37478M2T
RAM (192 bytes)
for
M37477M8/E8
M37478M8/E8
000016
007F16
00BF16
00FF16
010016
01BF16
SFR area
Zero
page
Not used
ROM (16384 bytes)
for
M37477M8/E8
M37478M8/E8
ROM (8192 bytes)
for
M37477M4
M37478M4
ROM (4096 bytes)
for
M37477M2T
M37478M2T
C00016
E00016
F00016
FF0016
FFE816
FFFF16
Interrupt vector area
Special
page
Fig. 2 Memory map
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