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MCU Applications Engineering
00000h
002FFh
SFR Area
00400h
007FFh
Internal RAM
Area - 1KB
Monitor RAM
Area - Bytes
Note: 128 User programs
not use shaded area.
must
02000h
02FFFh
Data Flash ROM
Area - 2KB
0C800h
Monitor
Program
User Program
Area - 14KB
0C000h
0FFFFh
Flash ROM
Area - 16KB
0FFD0h
0FFDCh
reserved
Fixed Vector
Area
Figure 6-2 R5F21174SP Memory Map
Note there are no limitations regarding user RAM. However, approx. 2k bytes of user Flash ROM
are utilized by the kernel.
6.4 Status After Reset
Table 6-2 lists the value of the UART1 register initialized by the kernel when the Mini R8C starter
board is reset. The register status depends on the MCU’s internal operation performed after a
reset.
Table 6-2. Initial Register Values After Reset
Register Name
Initial Value After Reset
UART1 Set for external clock synchronous mode
6.5 Register Operation Limitations
Table 6-3 lists registers with modification limitations. Modifying the contents of these registers are
modified may cause the kernel to operate incorrectly.
Table 6-3. Limitations on Register Operation
Register Name
Address Match Interrupt Enable Register
Address Match Interrupt Register 0
Address Match Interrupt Register 1
High-speed On-Chip Oscillator Control
Registers 1 (HRA0, HRA1, HRA2)
Restriction
Do not change
Do not change
Do not change
The kernel sets the high-speed on-chip
oscillator to 8MHz. Do not modify or disable it.
6.6 Limitations on Interrupts - Vectors that reside in the Hardware Vector Table
Table 6-4 lists the limitations on hardware interrupt vector addresses.
Table 6-4. Interrupt Vector Addresses
Interrupt Cause
R8C/17 Vector Address
Kit Specification
SKP8CMINI-17 User’s Manual Rev. 1.1
12/22
March 2005
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相关PDF资料
SKP8CMINI DEV EVALUATION KIT R8C/11
SL03 10001 CURRENT LIMITER INRUSH 10 OHM 1A
SL03 22101 CURRNT LIMITER INRUSH 220 OHM 1A
SL05 30001 CURRENT LIMITER INRUSH 30 OHM 1A
SL05 4R003 CURRENT LIMITER INRUSH 4 OHM 3A
SL05 5R001 CURRENT LIMITER INRUSH 5 OHM 1A
SL08 10002 CURRENT LIMITER 10 OHM 2.5A
SL08 12101 CURRNT LIMITER INRUSH 120 OHM 1A
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