r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 60
r5f21346mnfp
Manufacturer Part Number
r5f21346mnfp
Description
Single-chip Mcus Incorporates The R8c Cpu Core
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5F21346MNFP.pdf
(776 pages)
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R8C/34M Group
R01UH0131EJ0100 Rev.1.00
Jun 21, 2011
Table 5.2 lists the Pin Functions while RESET Pin Level is “L”, Figure 5.2 shows the CPU Register Status after Reset,
Figure 5.3 shows the Reset Sequence.
Figure 5.2
Figure 5.3
Table 5.2
Internal reset
signal
P0 to P2, P6
P3_0 and P3_1, P3_3 to P3_5, P3_7 Input port
P4_2 to P4_7
CPU clock
Address
(internal address
signal)
RESET pin
fOCO-S
Notes:
1. Hardware reset.
2. When the “L” input width to the RESET pin is set to fOCO-S clock × 32 cycles or more, setting the RESET pin to “H” also sets the internal
reset signal to “H” at the same time.
Pin Name
CPU Register Status after Reset
Reset Sequence
Pin Functions while RESET Pin Level is “L”
10 µs or more are needed
b15
fOCO-S clock × 32 cycles
IPL
b19
Content of addresses 0FFFEh to 0FFFCh
Start time of flash memory
(CPU clock × 148 cycles)
b15
b15
b15
(1)
b8
(2)
00000h
Input port
Input port
U
b7
I
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
O
CPU clock × 28 cycles
B
S
Pin Function
Z
D
C
b0
b0
b0
b0
b0
0FFFCh
Interrupt table register (INTB)
Program counter (PC)
User stack pointer (USP)
Interrupt stack pointer (ISP)
Static base register (SB)
Flag register (FLG)
Data register (R0)
Data register (R1)
Data register (R2)
Data register (R3)
Address register (A0)
Address register (A1)
Frame base register (FB)
0FFFDh
0FFFEh
Content of reset vector
Page 28 of 740
5. Resets
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