M16CSLASH26 datasheet(123/239 Pages) RENESAS

123 / 239 page

Renesas Technology Corp.

Serial I/O

117

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.

Figure 1.15.9. Serial I/O-related registers (6)

UART2 special mode register 2

Symbol

Address

When reset

U2SMR2

0376 16

X00000002

b6 b5

Bit name

Bit

symbol

Function

STAC

SWC2

SDHI

I C mode select bit 2

SCL wait output bit

0 : Disabled

1 : Enabled

SDA output stop bit

UARTi initialization bit

Clock-synchronous bit

Refer to Table 1.15.14

0 : Disabled

1 : Enabled

IICM2

CSC

SWC

ALS

0 : Disabled

1 : Enabled

SDA output disable bit

SCL wait output bit 2

0: Enabled

1: Disabled (high impedance)

0 : Disabled

1 : Enabled

0: UART2 clock

1: 0 output

UART2 special mode register 3

Symbol

Address

When reset

U2SMR3

0375 16

000X0X0X2

b6 b5

Bit name

Bit

symbol

Function

DL2

SDAi (TXDi) digital delay

setup bit

(Note 1, Note 2)

DL0

DL1

0 0 0 : Without delay

0 0 1 : 1 to 2 cycle(s) of BRG count source

0 1 0 : 2 to 3 cycles of BRG count source

0 1 1 : 3 to 4 cycles of BRG count source

1 0 0 : 4 to 5 cycles of BRG count source

1 0 1 : 5 to 6 cycles of BRG count source

1 1 0 : 6 to 7 cycles of BRG count source

1 1 1 : 7 to 8 cycles of BRG count source

Nothing is assigned.

In an attempt to write to these bits, write 0 . The value, if read, turns out to be

indeterminate.

b7 b6 b5

Nothing is assigned.

In an attempt to write to these bits, write 0 . The value, if read, turns out to be

indeterminate.

0 : Without clock delay

1 : With clock delay

Clock phase set bit

Nothing is assigned.

In an attempt to write to these bits, write 0 . The value, if read, turns out to be

indeterminate.

0 : CLKi is CMOS output

1 : CLKi is N-channel open drain output

Clock output select bit

Nothing is assigned.

In an attempt to write to these bits, write 0 . The value, if read, turns out to be

indeterminate.

CKPH

NODC

Note 1 : These bits are used for SDAi (TxDi)output digital delay when using UARTi for I2C interface.

Otherwise,must set to 0002 .

Note 2 : The amount of delay varies with the load on SCL and SDA pins. Also, when using an external clock, the amount of

delay increases by about 100 ns, so be sure to take this into account when using the device.

M16C/26 Datasheet(PDF) 123 Page - Renesas Technology Corp

M16C/26 Datasheet(HTML) 123 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL