M16CSLASH26 datasheet(20/239 Pages) RENESAS

20 / 239 page

Reset

Renesas Technology Corp.

M16C/26 Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Under

development

Preliminary Specifications Rev. 0.9

Specifications in this manual are tentative and subject to change.

Table 1.5.1. Pin status at RESET for User / Boot operating modes

Figure 1.5.3. CPU register status after reset

b15

Data register(R0)

Address register(A0)

Frame base register(FB)

Program counter(PC)

Interrupt table register(INTB)

User stack pointer(USP)

Interrupt stack pointer(ISP)

Static base register(SB)

Flag register(FLG)

000016

IPL

000016

b19

Content of addresses FFFFE16 to FFFFC16

b15

0000016

Data register(R1)

Data register(R2)

Data register(R3)

Address register(A1)

000016

Status

User Mode (CNVSS = VSS)

Pin name

P15 to P17

P60 to P63

P65

P66

P67

P64

P90 to P93, P10

Input port (high impedance)

Data input (high impedance)

BUSY output

CE input

P80 to P83, P85

P86

P87

Data input (high impedance)

Boot Mode (CNVSS = VCC)

Input port (high impedance)

SCLK input

Input port (high impedance)

RXD input

Input port (high impedance)

TXD output

Input port (high impedance)

Data input (high impedance)

Input port (high impedance)

Data input (high impedance)

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