M37902FGCHP 查看數據表（PDF） - MITSUBISHI ELECTRIC
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M37902FGCHP Datasheet PDF : 143 Pages
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MITSUBISHI MICROCOMPUTERS
M37902FCCHP, M37902FGCHP, M37902FJCHP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
BASIC FUNCTION BLOCKS
These microcomputers contain the following devices on the single
chip: the flash memory, RAM, CPU, bus interface unit, and periph-
eral devices such as the interrupt control circuit, timers, serial I/O,
A-D converter, D-A converter, I/O ports, clock generating circuit, etc.
MEMORY
Figures 1 to 3 show the memory maps. The address space is 16
Mbytes from addresses 016 to FFFFFF16. The address space is di-
vided into 64-Kbyte units called banks. The banks are numbered
from 016 to FF16. Bank FF16 is a reserved area for the development
support tool. Therefore, do not use bank FF16.
Internal flash memory and internal RAM are assigned as shown in
Figures 1 to 3.
Addresses FFC016 to FFFF16 contain the RESET and the interrupt
vector addresses, and the interrupt vectors are stored there.
For details, refer to the section on interrupts.
Assigned to addresses 016 to FF16 are peripheral devices such as
I/O ports, A-D converter, D-A converter, UART, timers, interrupt con-
trol registers, etc. Figures 7 and 8 show the location of SFRs.
For the flash memory in the boot ROM area, refer to the section on
the flash memory mode.
Bank 016
Bank 116
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00000016
00FFFF16
01000016
01FFFF16
Bank FE16
Bank FF16
FE000016
FEFFFF16
FF000016
FFFFFF16
Reserved area
for development
support tool
00000016
0000FF16
00080016
Peripheral devices
control registers
0017FF16
00180016
Internal RAM
4096 bytes
001FFF16
00200016
00FFC016
00FFFF16
Internal flash memory
120 Kbytes
(User ROM area)
Fig. 1 Memory map of M37902FCCHP (Single-chip mode)
Interrupt vector table
00FFC016
Reserved area
Reserved area
Reserved area
Reserved area
Reserved area
Address matching detect
Reserved area
Reserved area
INT4
INT3
A-D conversion
UART1 transmit
UART1 receive
UART0 transmit
UART0 receive
Timer B2
Timer B1
Timer B0
Timer A4
Timer A3
Timer A2
Timer A1
Timer A0
INT2
INT1
INT0
NMI
Watchdog timer
00FFFE16
DBC
BRK instruction
Zero divide
RESET
9
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