h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 781

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

7. Boot mode can be cleared by a reset. Cancel the reset *
8. Do not change the mode pin input levels in boot mode. If mode pin input levels are changed
9. All interrupts are disabled during programming or erasing of the flash memory.
Notes: 1. After reset is cancelled, mode pin input settings must satisfy the mode programming
branching to the programming control program. These registers must be initialized at the
beginning of the programming control program, since the stack pointer (SP), in particular, is
used implicitly in subroutine calls, etc.
at least 20 states, and then setting the mode pins. Boot mode is also cleared when a WDT
overflow occurs.
from low to high during reset, operating modes are switched and the state of ports that are also
used for address output and bus control output signals (AS, RD, and HWR) are changed. *
Therefore, set these pins carefully not to be output signals during reset or not to conflict with
LSI external signals.
2. The ports that also have address output functions output low as address output when
setup time (t
the MD1 pin is set to 0 during a reset. In other cases, it enters the high impedance state.
Bus control output signals output high when the MD1 pin is set to 0 during a reset. In
other cases, it enters the high impedance state.
MDS
= 4 states).
Rev. 3.00 Jan 25, 2006 page 729 of 872
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after driving the reset pin low, waiting
REJ09B0286-0300
Section 24 ROM
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