SH7052 datasheet(472/919 Pages) RENESAS

472 / 919 page

446

• Bit 6—Character Length (CHR): Selects 7-bit or 8-bit data in asynchronous mode. In

synchronous mode, the data length is always eight bits, regardless of the CHR setting.

Bit 6: CHR

Description

Eight-bit data

(Initial value)

Seven-bit data

When 7-bit data is selected, the MSB (bit 7) of the transmit data register

is not transmitted. LSB-first/MSB-first selection is not available.

• Bit 5—Parity Enable (PE): Selects whether to add a parity bit to transmit data and to check the

parity of receive data, in asynchronous mode. In synchronous mode and when using a

multiprocessor format, a parity bit is neither added nor checked, regardless of the PE bit

setting.

Bit 5: PE

Description

Parity bit not added or checked

(Initial value)

Parity bit added and checked

When PE is set to 1, an even or odd parity bit is added to transmit data,

depending on the parity mode (O/

E bit) setting. Receive data parity is

checked according to the even/odd (O/

E bit) setting.

• Bit 4—Parity Mode (O/E): Selects even or odd parity when parity bits are added and checked.

The O/

E setting is used only in asynchronous mode and only when the parity enable bit (PE) is

set to 1 to enable parity addition and checking. The O/

E setting is invalid in synchronous

mode, in asynchronous mode when parity bit addition and checking is disabled, and when

using a multiprocessor format.

Bit 4: O/

Description

Even parity

(Initial value)

If even parity is selected, the parity bit is added to transmit data to make

an even number of 1s in the transmitted character and parity bit

combined. Receive data is checked to see if it has an even number of

1s in the received character and parity bit combined.

Odd parity

If odd parity is selected, the parity bit is added to transmit data to make

an odd number of 1s in the transmitted character and parity bit

combined. Receive data is checked to see if it has an odd number of 1s

in the received character and parity bit combined.

SH7052 Datasheet(PDF) 472 Page - Renesas Technology Corp

SH7052 Datasheet(HTML) 472 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