Nec switch Uživatelský manuál stáhnout pdf (Strana 157)

CHAPTER 9 SERIAL INTERFACE 10

User’s Manual U12978EJ3V0UD

157

9.3 Register Controlling Serial Interface 10

The following register is used to control serial interface 10.

• Serial operation mode register 10 (CSIM10)

(1) Serial operation mode register 10 (CSIM10)

This register is used to control serial interface 10 and set the serial clock and start bit.

CSIM10 is set with a 1-bit or 8-bit memory manipulation instruction.

RESET input sets CSIM10 to 00H.

Figure 9-2. Format of Serial Operation Mode Register 10

CSIE10

Operation control in 3-wire serial I/O mode

CSIE10

TPS100

0 DIR10

CSCK10

0CSIM10

Symbol

Address After reset R/W

FF72H 00H R/W

<7>6543210

Operation disabled

Operation enabled

TPS100

Count clock selection when operation enabled in 3-wire serial I/O mode

DIR10

Start bit specification

MSB

LSB

CSCK10

Clock selection in 3-wire serial I/O mode

Clock input to SCK10 pin from external

Internal clock selected by TPS100

Caution Bits 0, 3, 5, and 6 must be set to 0.

1 2 ... 152 153 154 155 156 157 158 159 160 161 162 ... 233 234

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Nec switch Uživatelský manuál Strana 157