pc87591l-n05 National Semiconductor Corporation, pc87591l-n05 Datasheet - Page 10

• Manufacturer Part Number: pc87591l-n05
• Description: Lpc Mobile Embedded Controller
• Manufacturer: National Semiconductor Corporation

www.national.com
Table of Contents
4.6
4.7
4.5.2
4.5.3
4.5.4
4.5.5
4.5.6
PS/2 INTERFACE .................................................................................................................... 119
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
MULTI-FUNCTION 16-BIT TIMER (MFT16) ........................................................................... 130
4.7.1
4.7.2
4.7.3
4.7.4
4.7.5
4.7.6
4.7.7
GPIO Port Px ............................................................................................................. 111
GPI Port Py ................................................................................................................ 113
GPO Port Pz .............................................................................................................. 114
GPIO Port Pw ............................................................................................................ 115
GPIO Port Registers .................................................................................................. 116
Features .................................................................................................................... 119
General Description ................................................................................................... 119
Operating With the Shift Mechanism Disabled .......................................................... 121
Operating With the Shift Mechanism Enabled ........................................................... 121
PS/2 Interface Registers ............................................................................................ 125
Features .................................................................................................................... 130
Clock Source Unit ...................................................................................................... 131
Timer/Counter and Action Unit .................................................................................. 132
Timer Interrupts ......................................................................................................... 136
Timer I/O Functions ................................................................................................... 137
Operation in Development System ............................................................................ 137
MFT16 Registers ....................................................................................................... 137
(Continued)
Bidirectional Port with Alternate Function ............................................................. 111
Input Only Port with Alternate Function ................................................................ 113
Output Only Port with Alternate Function ............................................................. 114
GPIO Port Signals Shared with Development System Signals ............................ 115
GPIO Register Map .............................................................................................. 116
Port Alternate Function Registers (PxALT, PyALT and PzALT) ........................... 116
Port Direction Registers (PxDIR and PwDIR) ...................................................... 117
Port Data Output Register (PxDOUT, PzDOUT and PwDOUT) ........................... 117
Port Data Input Registers (PxDIN, PyDIN and PwDIN) ........................................ 117
Port Weak Pull-Up Registers (PxWPU, PyWPU) ................................................. 118
Receive Mode ...................................................................................................... 123
Transmit Mode ..................................................................................................... 124
PS/2 Register Map ............................................................................................... 125
PS/2 Data Register (PSDAT) ............................................................................... 126
PS/2 Status Register (PSTAT) ............................................................................. 126
PS/2 Control Register (PSCON) .......................................................................... 127
PS/2 Output Signal Register (PSOSIG) ............................................................... 128
PS/2 Input Signal Register (PSISIG) .................................................................... 128
PS/2 Interrupt Enable Register (PSIEN) .............................................................. 129
Pre-Scaler ............................................................................................................ 131
External Event Clock ............................................................................................ 131
Pulse Accumulate Mode ....................................................................................... 131
Slow-Speed Clock (LFCLK) ................................................................................. 131
Counter Clock Source Select ............................................................................... 132
Operation Modes .................................................................................................. 132
Mode 1, PWM and Counter .................................................................................. 132
Mode 2, Dual Input Capture ................................................................................. 133
Mode 3, Dual Independent Timer ......................................................................... 134
Mode 4, Input Capture and Timer ........................................................................ 135
MFT16 Register Map ............................................................................................ 137
10
Revision 1.2