PC87364-XXXSLASHVLA datasheet(9/180 Pages) NSC

9 / 180 page

Table of Contents (Continued)

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6.2.2

Operation ................................................................................................................... 125

6.3

EVENT HANDLING AND SYSTEM NOTIFICATION .............................................................. 126

6.3.1

Event Configuration ................................................................................................... 126

6.3.2

System Notification .................................................................................................... 126

6.4

GPIO PORT REGISTERS ....................................................................................................... 127

6.4.1

GPIO Pin Configuration (GPCFG) Register .............................................................. 128

6.4.2

GPIO Pin Event Routing (GPEVR) Register ............................................................. 129

6.4.3

GPIO Port Runtime Register Map ............................................................................. 129

6.4.4

GPIO Data Out Register (GPDO) .............................................................................. 130

6.4.5

GPIO Data In Register (GPDI) .................................................................................. 130

6.4.6

GPIO Event Enable Register (GPEVEN) .................................................................. 131

6.4.7

GPIO Event Status Register (GPEVST) .................................................................... 131

7.0

WATCHDOG Timer (WDT)

7.1

OVERVIEW ............................................................................................................................. 132

7.2

FUNCTIONAL DESCRIPTION ................................................................................................ 132

7.3

WATCHDOG TIMER REGISTERS ......................................................................................... 133

7.3.1

WATCHDOG Timer Register Map ............................................................................. 133

7.3.2

WATCHDOG Timeout Register (WDTO) .................................................................. 133

7.3.3

WATCHDOG Mask Register (WDMSK) .................................................................... 134

7.3.4

WATCHDOG Status Register (WDST) ...................................................................... 135

7.4

WATCHDOG TIMER REGISTER BITMAP ............................................................................. 135

8.0

ACCESS.bus Interface (ACB)

8.1

OVERVIEW ............................................................................................................................. 136

8.2

FUNCTIONAL DESCRIPTION ................................................................................................ 136

8.2.1

Data Transactions ..................................................................................................... 136

8.2.2

Start and Stop Conditions .......................................................................................... 136

8.2.3

Acknowledge (ACK) Cycle ........................................................................................ 137

8.2.4

Acknowledge after Every Byte Rule .......................................................................... 138

8.2.5

Addressing Transfer Formats .................................................................................... 138

8.2.6

Arbitration on the Bus ................................................................................................ 138

8.2.7

Master Mode .............................................................................................................. 139

8.2.8

Slave Mode ................................................................................................................ 141

8.2.9

Configuration ............................................................................................................. 141

8.3

ACB REGISTERS .................................................................................................................... 142

8.3.1

ACB Register Map ..................................................................................................... 142

8.3.2

ACB Serial Data Register (ACBSDA) ........................................................................ 142

8.3.3

ACB Status Register (ACBST) .................................................................................. 143

8.3.4

ACB Control Status Register (ACBCST) ................................................................... 144

8.3.5

ACB Control Register 1 (ACBCTL1) .......................................................................... 145

8.3.6

ACB Own Address Register (ACBADDR) ................................................................. 146

8.3.7

ACB Control Register 2 (ACBCTL2) .......................................................................... 146

8.4

ACB REGISTER BITMAP ........................................................................................................ 147

PC87364-XXX/VLA Datasheet(PDF) 9 Page - National Semiconductor (TI)

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