
MOTOROLA
Page v
MC68HC05C0 Specification Rev. 1.2
8.4.2
KSEN - Keyboard Scan ENable ......................................... 36
8.4.3
Keyboard Scan Acknowledge............................................. 36
8.4.4
Keyboard Scan Edge/Level ................................................ 36
8.4.5
IRQF - Interrupt ReQuest Flag ........................................... 36
8.4.6
IRQEN - Interrupt ReQuest ENable.................................... 36
8.4.7
IRQA - Interrupt ReQuest Acknowledge............................. 37
8.4.8
IRQEL - Interrupt ReQuest Edge/Level .............................. 37
SECTION 9
ADDRESS/DATA BUS INTERFACE ............................ 39
9.1
MODE SELECTION ................................................................. 39
9.2
MUXED MODE BUS TIMING .................................................. 39
9.3
NON-MUXED MODE BUS TIMING ......................................... 40
9.4
CLOCK STRETCHED BUS TIMING........................................ 41
9.4.1
MUXED MODE CLOCK STRETCHED READ CYCLE....... 42
9.4.2
MUXED MODE CLOCK STRETCHED WRITE CYCLE ..... 42
9.4.3
NON-MUXED MODE CLOCK STRETCHED
READ CYCLE..................................................................... 43
9.4.4
NON-MUXED MODE CLOCK STRETCHED
WRITE CYCLE ................................................................... 43
9.5
BUS CYCLE CHARACTERISTICS.......................................... 45
9.6
ADDRESS/DATA BUS DURING WAIT AND STOP MODE .... 45
SECTION 10
MULTI-FUNCTION TIMER ............................................ 47
10.1
INTRODUCTION...................................................................... 47
10.2
TIMER CONTROL AND STATUS REGISTER (TCSR) ........... 48
10.2.1
TOF - Timer Over Flow....................................................... 48
10.2.2
RTIF - Real Time Interrupt Flag.......................................... 48
10.2.3
TOFE - Timer Over Flow Enable ........................................ 49
10.2.4
RTIE - Real Time Interrupt Enable ..................................... 49
10.2.5
TOFC - Timer Over Flow Flag Clear................................... 49
10.2.6
RTIFC - Real Time Interrupt Flag Clear.............................. 49
10.2.7
RT1:RT0 - Real Time Interrupt Rate Select........................ 49
10.3
TIMER COUNTER REGISTER (TCR) ..................................... 50
10.4
COMPUTER OPERATING PROPERLY (COP) WATCHDOG
RESET ..................................................................................... 50
10.5
TIMER DURING WAIT MODE ................................................. 51
10.6
TIMER DURING STOP MODE ................................................ 51
SECTION 11
16-BIT TIMER ................................................................ 53
11.1
INTRODUCTION...................................................................... 53
11.2
COUNTER ............................................................................... 53
11.3
OUTPUT COMPARE REGISTER............................................ 55
11.4
INPUT CAPTURE REGISTER................................................. 56
11.5
TIMER CONTROL REGISTER (TCR) ..................................... 57
11.6
TIMER STATUS REGISTER (TSR)......................................... 59
11.7
TIMER DURING WAIT MODE ................................................. 59
11.8
TIMER DURING STOP MODE ................................................ 60