Siemens EF 88H Series Manual de usuario descargar pdf (Pagina 116)

Device Specification

Semiconductor Group 7-54

Serial Interfaces

The SAB 80C517A has two serial interfaces. Both interfaces are full duplex and receive

buffered. They are functionally identical with the serial interface of the SAB 8051 when working

as asynchronous channels. Serial interface 0 additionally has a synchronous mode. Table 9

shows possible configurations and the according baud rates.

Table 9

Baud Rate Generation

Mode Mode 0

–

8-Bit

syn-

chron-

ous

channel

Baud-

rate

O S C

2 MHz

OSC

16 MHz

OSC

18 MHz

1MHz

1.33 MHz

1.5 MHz

–

derived from f

OSC

–

Mode Mode 1 Mode B

8-Bit

UART

Baud-

rate

OSC

12 MHz

OSC

16 MHz

OSC

18 MHz

1 Baud –

62.5 kBaud

1 Baud –

83 kBaud

1 Baud –

93.7 kBaud

183 Baud –

375 kBaud

244 Baud –

500 kBaud

2375 Baud –

562.5 kBaud

366 Baud –

375 kBaud

244 Baud –

500 kBaud

549 Baud –

562.5 kBaud

derived from Timer 1 10-Bit

Baudrate

Generator

10-Bit

Baudrate

Generator

Mode Mode 2 Mode 3 Mode A

9-Bit

UART

Baud-

rate

OSC

12 MHz

OSC

16 MHz

OSC

18 MHz

187.5 kBaud/

375 kBaud

250 Baud/

500 kBaud

281.2 kBaud/

562.5 kBaud

1 Baud –

62.5 kBaud

1 Baud –

83.3 kBaud

1 Baud –

93.7 kBaud

183 Baud –

75 kBaud

244 Baud –

500 kBaud

275 Baud

562.5 kBaud

183 Baud –

75 kBaud

244 Baud –

500 kBaud

549 Baud –

562.5 kBaud

derived

from

OSC/

2 Timer 1 10-Bit

Baudrate

Generator

10-Bit

Baudrate

Generator

1 2 ... 111 112 113 114 115 116 117 118 119 120 121 ... 136 137

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