7733 datasheet(213/940 Pages) RENESAS

213 / 940 page

SERIAL I/O

7733 Group User’s Manual

8–10

At reset

Bit

Bit name

Framing error flag (Notes 1 and 2)

(Valid in the UART mode.)

0: No framing error is detected.

1: Framing error is detected.

Functions

UART0 transmit/receive control register 1 (address 35 16)

UART1 transmit/receive control register 1 (address 3D 16)

UART2 transmit/receive control register 1 (address 69 16)

Notes 1: Bits 4 to 7 are cleared to “0” when the serial I/O mode selection bits (bits 2 to 0 at

addresses 3016, 3816) are cleared to “0002” or when the receive enable bit is cleared

to “0.” (Bit 7 is cleared to “0” when all of bits 4 to 6 are “0.”)

Note also that bits 5 and 6 are cleared to “0” when the low-order byte of the UARTi

receive buffer register (addresses 36 16, 3E16, 6A16) is read out.

2: Bits 5 to 7 are ignored in the clock synchronous serial I/O mode.

Transmit enable bit

0: Transmission is disabled.

1: Transmission is enabled.

Transmission buffer empty flag

0: Data is present in the transmission

buffer register.

1: No data is present in the

transmission buffer register.

Receive enable bit

0: Reception is disabled.

1: Reception is enabled.

Receive completion flag

0: No data is present in the receive

buffer register.

1: Data is present in the receive

buffer register.

Overrun error flag (Note 1)

0: No overrun error is detected.

1: Overrun error is detected.

Parity error flag (Notes 1 and 2)

(Valid in the UART mode.)

0: No parity error is detected.

1: Parity error is detected.

Error sum flag (Notes 1 and 2)

(Valid in the UART mode.)

0: No error is detected.

1: Error is detected.

8.2 Block description

8.2.3 UARTi transmit/receive control register 1

Figure 8.2.6 shows the structure of UARTi transmit/receive control register 1. For bits 7 to 4, refer to the

description of each operating mode.

Fig. 8.2.6 Structure of UARTi transmit/receive control register 1

7733 датащи(PDF) 213 Page - Renesas Technology Corp

7733 датащи(HTML) 213 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