W77E516 Просмотр технического описания (PDF) - Winbond

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W77E516

8-BIT MICROCONTROLLER

Winbond 

Preliminary W77E516

Serial Data Buffer

Bit:

7

6

5

4

3

2

1

0

SBUF.7 SBUF.6 SBUF.5 SBUF.4 SBUF.3 SBUF.2 SBUF.1 SBUF.0

Mnemonic: SBUF

Address: 99h

SBUF.7 − 0: Serial data on the serial port 0 is read from or written to this location. It actually

consists of two separate internal 8-bit registers. One is the receive resister, and the

other is the transmit buffer. Any read access gets data from the receive data buffer,

while write access is to the transmit data buffer.

P4.2 Base Address Low Byte Register

Bit:

7

6

5

4

3

2

1

0

A7

A6

A5

A4

A3

A2

A1

A0

Mnemonic: P42AL

Address: 9Ah

P4.2 Base Address High Byte Register

Bit:

7

6

5

4

3

2

1

0

A15 A14 A13 A12 A11 A10

A9

A8

Mnemonic: P42AH

Address: 9Bh

P4.3 Base Address Low Byte Register

Bit:

7

6

5

4

3

2

1

0

A7

A6

A5

A4

A3

A2

A1

A0

Mnemonic: P43AL

Address: 9Ch

P4.3 Base Address High Byte Register

Bit:

7

6

5

4

3

2

1

0

A15 A14 A13 A12 A11 A10

A9

A8

Mnemonic: P43AH

Address: 9Dh

ISP Control Register

Bit:

7

6

5

4

3

2

1

0

SWRST/HWB - LDAP

-

-

- LDSEL ENP

Mnemonic: CHPCON

Address: 9Fh

SWRST/HWB: Set this bit to launch a whole device reset that is same as asserting high to RST pin,

micro controller will be back to initial state and clear this bit automatically. To read

this bit, its alternate function to indicate the ISP hardware reboot mode is invoking

when read it in high.

- 20 -

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