M16CSLASH26 datasheet(119/239 Pages) RENESAS

119 / 239 page

Renesas Technology Corp.

Serial I/O

113

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 1.15.5. Serial I/O-related registers (2)

UARTi transmit/receive control register 0

Symbol

Address

When reset

UiC0(i=0,1)

03A416, 03AC16

0816

Function

(During UART mode)

Function

(During clock synchronous

serial I/O mode)

TXEPT

CLK1

CLK0

CRS

CRD

NCH

CKPOL

BRG count source

select bits

Transmit register empty

flag

0 : Transmit data is output at

falling edge of transfer clock

and receive data is input at

rising edge

1 : Transmit data is output at

rising edge of transfer clock

and receive data is input at

falling edge

CLK polarity select bit

CTS/RTS function

select bit

CTS/RTS disable bit

Data output select bit

0 0 : f1SIO or f2SIO is selected

(Note 2)

0 1 : f8SIO is selected

1 0 : f32SIO is selected

1 1 : Inhibited

b1 b0

0 : LSB first

1 : MSB first

0 : Data present in transmit

1 : No data present in transmit

completed)

0 : CTS/RTS function enabled

1 : CTS/RTS function disabled

(P60 and P64 function as

programmable I/O port)

0 : TXDi pin is CMOS output

1 : TXDi pin is N-channel

open-drain output

UFORM Transfer format select bit

0 0 : f1SIO or f2SIO is selected

(Note 2)

0 1 : f8SIO is selected

1 0 : f32SIO is selected

1 1 : Inhibited

b1 b0

Valid when bit 4 = “0”

0 : CTS function is selected (Note 1)

1 : RTS function is selected (Note 3)

Valid when bit 4 = “0”

0 : CTS function is selected (Note 1)

1 : RTS function is selected (Note 3)

0 : Data present in transmit register

(during transmission)

1 : No data present in transmit

0: TXDi pin is CMOS output

1: TXDi pin is N-channel

open-drain output

Must always be “0”

Bit name

Bit

symbol

Must always be “0”

Note 1: Set the corresponding port direction register to “0”.

Note 3: The settings of the corresponding port register and port direction register are invalid.

0 : CTS/RTS function enabled

1 : CTS/RTS function disabled

(P60 and P64 function as

programmable I/O port)

UARTi transmit/receive mode register

Symbol

Address

When reset

UiMR(i=0,1)

03A016, 03A816

0016

Bit name

Bit

symbol

Must be fixed to 001

0 0 0 : Serial I/O invalid

0 1 0 : Inhibited

0 1 1 : Inhibited

1 1 1 : Inhibited

b2 b1 b0

CKDIR

SMD1

SMD0

Serial I/O mode

select bits

SMD2

Internal/external clock

select bit

STPS

PRY

PRYE

Reserved

Parity enable bit

0 : Internal clock

1 : External clock

Stop bit length select bit

Odd/even parity select bit

0 : One stop bit

1 : Two stop bits

0 : Parity disabled

1 : Parity enabled

1 0 0 : Transfer data 7 bits long

1 0 1 : Transfer data 8 bits long

1 1 0 : Transfer data 9 bits long

0 0 0 : Serial I/O invalid

0 1 0 : Inhibited

0 1 1 : Inhibited

1 1 1 : Inhibited

b2 b1 b0

0 : Internal clock

1 : External clock (Note 1)

Invalid

Valid when bit 6 = “1”

0 : Odd parity

1 : Even parity

Invalid

Must always be “0”

Function

(During UART mode)

Function

(During clock synchronous

serial I/O mode)

Note 2: Periperal clock select register bit PCLK1 is used to select between f1SIO and f2SIO.

M16C/26 датащи(PDF) 119 Page - Renesas Technology Corp

M16C/26 датащи(HTML) 119 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

датащи скачать

ссылки URL