pc87591l National Semiconductor Corporation, pc87591l Datasheet - Page 10

• Manufacturer Part Number: pc87591l
• Description: Lpc Mobile Embedded Controllers
• Manufacturer: National Semiconductor Corporation

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Table of Contents
4.6
4.7
4.5.5
4.5.6
PS/2 INTERFACE .................................................................................................................... 122
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
MULTI-FUNCTION 16-BIT TIMER (MFT16) ........................................................................... 134
4.7.1
4.7.2
4.7.3
4.7.4
4.7.5
4.7.6
4.7.7
GPIO Port Pw ............................................................................................................ 118
GPIO Port Registers .................................................................................................. 119
Features .................................................................................................................... 122
General Description ................................................................................................... 122
Operating With the Shift Mechanism Disabled .......................................................... 124
Operating With the Shift Mechanism Enabled ........................................................... 125
PS/2 Interface Registers ............................................................................................ 128
Features .................................................................................................................... 134
Clock Source Unit ...................................................................................................... 135
Timer/Counter and Action Unit .................................................................................. 136
Timer Interrupts ......................................................................................................... 140
Timer I/O Functions ................................................................................................... 141
Operation in Development System ............................................................................ 141
MFT16 Registers ....................................................................................................... 142
(Continued)
GPIO Port Signals Shared with Development System Signals ......................... 118
GPIO Register Map ........................................................................................... 119
Port Alternate Function Registers (PxALT, PyALT and PzALT) ........................ 119
Port Direction Registers (PxDIR and PwDIR) .................................................... 120
Port Data Output Register (PxDOUT, PzDOUT and PwDOUT) ........................ 120
Port Data Input Registers (PxDIN, PyDIN and PwDIN) ..................................... 120
Port Weak Pull-Up Registers (PxWPU, PyWPU) .............................................. 121
Receive Mode .................................................................................................... 126
Transmit Mode ................................................................................................... 127
PS/2 Register Map ............................................................................................. 129
PS/2 Data Register (PSDAT) ............................................................................. 129
PS/2 Status Register (PSTAT) .......................................................................... 129
PS/2 Control Register (PSCON) ........................................................................ 130
PS/2 Output Signal Register (PSOSIG) ............................................................. 131
PS/2 Input Signal Register (PSISIG) ................................................................. 132
PS/2 Interrupt Enable Register (PSIEN) ............................................................ 133
Pre-Scaler .......................................................................................................... 135
External Event Clock ......................................................................................... 135
Pulse Accumulate Mode .................................................................................... 135
Slow-Speed Clock ............................................................................................. 135
Counter Clock Source Select ............................................................................. 136
Operation Modes ............................................................................................... 136
Mode 1, PWM and Counter ............................................................................... 136
Mode 2, Dual Input Capture ............................................................................... 137
Mode 3, Dual Independent Timer ...................................................................... 138
Mode 4, Input Capture and Timer ...................................................................... 139
MFT16 Register Map ......................................................................................... 142
Timer/Counter Register 1 (TnCNT1) ................................................................. 142
Reload/Capture Register A (TnCRA) ................................................................. 142
Reload/Capture Register B (TnCRB) ................................................................. 142
Timer/Counter Register 2 (TnCNT2) ................................................................. 143
Clock Pre-Scaler Register (TnPRSC) ................................................................ 143
Clock Unit Control Register (TnCKC) ................................................................ 143
Timer Mode Control Register (TnCTRL) ............................................................ 144
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Revision 1.07