Section 4
Exception Handling
Rev. 1.00 Apr. 28, 2008 Page 79 of 994
REJ09B0452-0100
Vector Addresses
Exception Source
Vector
Number
Normal Mode
Internal interrupt
*
34
55
H'000088 to H'00008B
H'0000DC to H'0000DF
External interrupt IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
56
57
58
59
60
61
62
63
H'0000E0 to H'0000E3
H'0000E4 to H'0000E7
H'0000E8 to H'0000EB
H'0000EC to H'0000EF
H'0000F0 to H'0000F3
H'0000F4 to H'0000F7
H'0000F8 to H'0000FB
H'0000FC to H'0000FF
Internal interrupt
*
64
127
H'000100 to H'000103
H'0001FC to H'0001FF
Note:
*
For details on the internal interrupt vector table, see section 5.5, Interrupt Exception
Handling Vector Tables.
4.3 Reset
A reset has the highest exception priority. When the
RES
pin goes low, all processing halts and
this LSI enters the reset state. To ensure that this LSI is reset, hold the
RES
pin low for at least 20
ms at power-on. To reset the chip during operation, hold the
RES
pin low for at least 20 states. A
reset initializes the internal state of the CPU and the registers of on-chip peripheral modules. The
chip can also be reset by overflow of the watchdog timer. For details, see section 14, Watchdog
Timer (WDT).
4.3.1 Reset
Exception
Handling
When the
RES
pin goes high after being held low for the necessary time, this LSI starts reset
exception handling as follows:
1. The internal state of the CPU and the registers of the on-chip peripheral modules are initialized
and the I bit in CCR is set to 1.
2. The reset exception handling vector address is read and transferred to the PC, and then
program execution starts from the address indicated by the PC.
Summary of Contents for H8S/2100 Series
Page 2: ...Rev 1 00 Apr 28 2008 Page ii of xxvi...
Page 54: ...Section 1 Overview Rev 1 00 Apr 28 2008 Page 28 of 994 REJ09B0452 0100...
Page 92: ...Section 2 CPU Rev 1 00 Apr 28 2008 Page 66 of 994 REJ09B0452 0100...
Page 158: ...Section 5 Interrupt Controller Rev 1 00 Apr 28 2008 Page 132 of 994 REJ09B0452 0100...
Page 244: ...Section 8 8 Bit PWM Timer PWMU Rev 1 00 Apr 28 2008 Page 218 of 994 REJ09B0452 0100...
Page 330: ...Section 10 16 Bit Timer Pulse Unit TPU Rev 1 00 Apr 28 2008 Page 304 of 994 REJ09B0452 0100...
Page 416: ...Section 13 8 Bit Timer TMR Rev 1 00 Apr 28 2008 Page 390 of 994 REJ09B0452 0100...
Page 612: ...Section 18 I 2 C Bus Interface IIC Rev 1 00 Apr 28 2008 Page 586 of 994 REJ09B0452 0100...
Page 706: ...Section 20 LPC Interface LPC Rev 1 00 Apr 28 2008 Page 680 of 994 REJ09B0452 0100...
Page 752: ...Section 21 FSI Interface Rev 1 00 Apr 28 2008 Page 726 of 994 REJ09B0452 0100...
Page 774: ...Section 23 RAM Rev 1 00 Apr 28 2008 Page 748 of 994 REJ09B0452 0100...
Page 1008: ...Section 28 Electrical Characteristics Rev 1 00 Apr 28 2008 Page 982 of 994 REJ09B0452 0100...
Page 1020: ...Rev 1 00 Apr 28 2008 Page 994 of 994 REJ09B0452 0100...
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Page 1024: ...H8S 2117R Group Hardware Manual...