R0K561622S000BE Renesas Electronics America, R0K561622S000BE Datasheet - Page 119
R0K561622S000BE
Manufacturer Part Number
R0K561622S000BE
Description
KIT STARTER FOR H8SX/1622
Manufacturer
Renesas Electronics America
Series
Renesas Starter Kits (RSK)r
Type
MCUr
Specifications of R0K561622S000BE
Contents
Board, Cables, CD, Debugger, Power Supply
Silicon Manufacturer
Renesas
Features
Coding And Debugging, E10A Emulator, RS232 Serial Connection
Kit Contents
Board
Silicon Family Name
H8SX/1622F
Silicon Core Number
R5F61622N50LGV
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
H8SX/1622
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
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5.3.1
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
2. The reset exception handling vector address is read and transferred to the PC, and program
Figures 5.1 and 5.2 show examples of the reset sequence.
5.3.2
If an interrupt is accepted after a reset but before the stack pointer (SP) is initialized, the PC and
CCR will not be saved correctly, leading to a program crash. To prevent this, all interrupt requests,
including NMI, are disabled immediately after a reset. Since the first instruction of a program is
always executed immediately after the reset state ends, make sure that this instruction initializes
the stack pointer (example: MOV.L #xx: 32, SP).
initialized, VBR is cleared to H'00000000, the T bit is cleared to 0 in EXR, and the I bits are
set to 1 in EXR and CCR.
execution starts from the address indicated by the PC. In this case, by reading the flags in the
registers of individual functions, it is possible to determine whether the particular internal reset
has been issued based on the watchdog timer or the external interrupt during deep software
standby mode. For details, see section 4, Resets, section 15, Watchdog Timer (WDT), and
section 24, Power-Down Modes.
Reset Exception Handling
Interrupts after Reset
Rev. 2.00 Sep. 16, 2009 Page 89 of 1036
Section 5 Exception Handling
REJ09B0414-0200
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