M16C80 Datasheet, PDF (30/358 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/80 SERIES

M16C/80 Group
4. Reset
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Table 4.1 shows the statuses of the other pins while the RESET pin level is “L”. Figures 4.3 and 4.4 show
the internal status of the microcomputer immediately after the reset is cancelled.
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Table 4.1 Pin status when RESET pin level is “L”
Status
Pin name
P0
P1
P2, P3, P4
P50
P51
P52
P53
CNVSS = VSS
Input port (floating)
Input port (floating)
Input port (floating)
Input port (floating)
Input port (floating)
Input port (floating)
Input port (floating)
CNVSS = VCC
BYTE = VSS
BYTE = VCC
Data input (floating)
Data input (floating)
Data input (floating)
Input port (floating)
Address output (undefined)
Address output (undefined)
WR output (“H” level is output) WR output (“H” level is output)
BHE output (undefined)
BHE output (undefined)
RD output (“H” level is output) RD output (“H” level is output)
BCLK output
BCLK output
P54
Input port (floating)
HLDA output (The output value HLDA output (The output value
depends on the input to the depends on the input to the
HOLD pin)
HOLD pin)
P55
Input port (floating)
P56
Input port (floating)
P57
Input port (floating)
P6, P7, P80 to P84,
P86, P87, P9, P10,
Input port (floating)
P11, P12, P13,
P14, P15 (Note)
Input port (floating)
Note :Port P11 to P15 exist in 144-pin vrsion.
HOLD input (floating)
RAS output
RDY input (floating)
Input port (floating)
Input port (floating)
HOLD input (floating)
RAS output
RDY input (floating)
Input port (floating)
Input port (floating)
Rev.1.00 Aug. 02, 2005 ^{Page 19} of 329
REJ09B0187-0100