M306H2MC-XXXFP Datasheet, PDF (18/210 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with DATA ACQUISITION CONTROLLER

MITSUBISHI MICROCOMPUTERS
M306H2MC-XXXFP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
with DATA ACQUISITION CONTROLLER
____________
Table 2.3.1 shows the statuses of the other pins while the RESET pin level is “L”. Figures 2.3.3 and 2.3.4
show the internal status of the microcomputer immediately after the reset is cancelled.
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Table 2.3.1 Pin status when RESET pin level is “L”
Pin name
CNVSS
P0
Input port (floating)
P1
Input port (floating)
P2, P3, P40 to P43 Input port (floating)
P44
Input port (floating)
P45 to P47
Input port (floating)
Status
CNVSS = VCC
BYTE = VSS
BYTE = VCC
Data input (floating)
Data input (floating)
Data input (floating)
Input port (floating)
Address output (undefined)
Address output (undefined)
CS0 output (“H” level is output) CS0 output (“H” level is output)
Input port (floating)
(pull-up resistor is on)
Input port (floating)
(pull-up resistor is on)
P50
Input port (floating)
P51
Input port (floating)
P52
Input port (floating)
P53
Input port (floating)
P54
Input port (floating)
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
Output port
CVIN1,
SVREF, SYNCIN
FSCIN
Input port
LP2, LP3, LP4
Output port
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
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)
HOLD input (floating)
HOLD input (floating)
ALE output (“L” level is output) ALE output (“L” level is output)
RDY input (floating)
RDY input (floating)
Input port (floating)
Output port
Input port (floating)
Output port
Input port
Input port
Output port
Output port
2.3.1 Software Reset
Writing “1” to bit 3 of the processor mode register 0 (address 000416) applies a (software) reset to the
microcomputer. A software reset has almost the same effect as a hardware reset. The contents of
internal RAM are preserved.
Rev. 1.0
17