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H8/3003 Datasheet(PDF) 713 Page - Renesas Technology Corp

Part # H8/3003
Description  microcontroller (MCU)
PDF  715 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8/3003 Datasheet(HTML) 713 Page - Renesas Technology Corp

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Reset in T3 State: Figure D-3 is a timing diagram for the case in which RES goes low during the
T3 state of an external memory access cycle. As soon as RES goes low, all ports are initialized to
the input state.
AS, RD, HWR, and LWR go high, and the data bus goes to the high-impedance
state. The address bus outputs are held during the T3 state.The same timing applies when a reset
occurs in the T2 state of an access cycle to a two-state-access area.
Figure D-3 Reset during Memory Access (Reset during T3 State)
ø
Address bus
CS
CS to CS
RD (read access)
HWR, LWR
Data bus
I/O port
0
71
RES
AS
High impedance
High impedance
High impedance
Internal
reset signal
Access to external address
T1
T2
T3
(write access)
(write access)
H'000000
695



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