
Rev. 2.0, 09/99, page vi of xiii
15.7
How to Use the Special Pin (RLY, RING) .................................................................... 223
15.7.1 How to use the RLYCNT pin........................................................................... 223
15.7.2 How to Use the RING pin................................................................................ 223
Section 16 Keyboard Controller Interface ...................................................... 225
16.1
Overview..................................................................................................................... 225
16.1.1 Features........................................................................................................... 225
16.1.2 Block Diagram ................................................................................................ 225
16.2
Register Description..................................................................................................... 226
16.2.1 Control Register (CR)...................................................................................... 226
16.2.2 Status Register (SR) ........................................................................................ 227
16.2.3 H8 Control 1 Register (H8C1R)....................................................................... 228
16.2.4 H8 Control 2 Register (H8C2R)....................................................................... 228
16.3
Function Description.................................................................................................... 228
16.4
Timing Diagram .......................................................................................................... 228
Section 17 USB Device Controller................................................................. 231
17.1
Overview..................................................................................................................... 231
17.2
Features ....................................................................................................................... 231
17.3
Register Configuration ................................................................................................. 232
17.4
Serial Bus Interface Unit (SIU) .................................................................................... 234
17.4.1 Serial Bus Manager (SBM).............................................................................. 234
17.4.2 Serial Bus Interface Engine (SIE) .................................................................... 237
17.5
USB FIFOs.................................................................................................................. 238
17.5.1 Transmit FIFOs ............................................................................................... 238
17.5.2 Receive FIFOs................................................................................................. 243
17.6
Miscellaneous Registers............................................................................................... 248
17.7
USB Operation ............................................................................................................ 252
17.7.1 Overview of USB Operation ............................................................................ 252
17.7.2 Transmit Operation.......................................................................................... 252
17.7.3 Receive Operation ........................................................................................... 254
17.8
USB Suspend and Resume ........................................................................................... 258
Section 18 A/D Converter.............................................................................. 259
18.1
Overview..................................................................................................................... 259
18.1.1 Features........................................................................................................... 259
18.1.2 Block Diagram ................................................................................................ 260
18.1.3 Input Pins........................................................................................................ 260
18.1.4 Register Configuration..................................................................................... 261
18.2
Register Descriptions ................................................................................................... 262
18.2.1 A/D Data Registers A to D (ADDRA to ADDRD, ADCAL) ............................ 262
18.2.2 A/D Control/Status Register (ADCSR) ............................................................ 263
18.2.3 A/D Calibration Sample Control Register (ADCALCR) ................................... 264