![](http://datasheet.mmic.net.cn/370000/-PD30101_datasheet_16680756/-PD30101_11.png)
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5.3.6 Cause Register (13)...........................................................................................................
5.3.7 Exception Program Counter (EPC) Register (14) ..............................................................
5.3.8 WatchLo (18) and WatchHi (19) Registers.........................................................................
5.3.9 XContext Register (20).......................................................................................................
5.3.10 Parity Error Register (26) .................................................................................................
5.3.11 Cache Error Register (27)................................................................................................
5.3.12 ErrorEPC Register (30)....................................................................................................
5.4 DETAILS OF EXCEPTIONS..................................................................................
5.4.1 Exception Types.................................................................................................................
5.4.2 Exception Vector Locations................................................................................................
5.4.3 Priority of Exceptions.......................................................................................................... 101
5.4.4 Cold Reset Exception......................................................................................................... 102
5.4.5 Soft Reset Exception.......................................................................................................... 103
5.4.6 NMI Exception.................................................................................................................... 104
5.4.7 Address Error Exception .................................................................................................... 105
5.4.8 TLB Exceptions.................................................................................................................. 106
5.4.9 Cache Error Exception....................................................................................................... 109
5.4.10 Bus Error Exception ......................................................................................................... 110
5.4.11 System Call Exception ..................................................................................................... 111
5.4.12 Breakpoint Exception ....................................................................................................... 111
5.4.13 Coprocessor Unusable Exception.................................................................................... 112
5.4.14 Reserved Instruction Exception........................................................................................ 113
5.4.15 Trap Exception................................................................................................................. 113
5.4.16 Integer Overflow Exception.............................................................................................. 114
5.4.17 Watch Exception .............................................................................................................. 114
5.4.18 Interrupt Exception........................................................................................................... 115
5.5 EXCEPTION HANDLING AND SERVICING FLOWCHARTS................................ 115
92
94
95
96
97
97
98
99
99
99
CHAPTER 6 PIN FUNCTIONS.......................................................................... 123
6.1 V
R
4101 SIGNALS................................................................................................. 124
6.1.1 System Bus Interface Signals ............................................................................................ 124
6.1.2 Clock Interface Signals....................................................................................................... 125
6.1.3 Battery Monitor Interface Signals....................................................................................... 126
6.1.4 Initialization Interface Signals............................................................................................. 126
6.1.5 RS-232-C Interface Signals................................................................................................ 127
6.1.6 IrDA Interface Signals ........................................................................................................ 127
6.1.7 Debug Serial Interface Signals........................................................................................... 128
6.1.8 Keyboard Interface Signals................................................................................................ 128
6.1.9 Audio Interface Signal........................................................................................................ 129
6.1.10 Touch Panel Interface Signals ......................................................................................... 129
6.1.11 General-purpose I/O Signals............................................................................................ 130