PIC16F88

Manufacturer Part NumberPIC16F88
ManufacturerMicrochip Technology Inc.
PIC16F88 datasheet
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
Page 141
142
Page 142
143
Page 143
144
Page 144
145
Page 145
146
Page 146
147
Page 147
148
Page 148
149
Page 149
150
Page 150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
Page 144/228:

WDTCON: WATCHDOG CONTROL REGISTER

Download datasheet (5Mb)Embed
PrevNext
PIC16F87/88
REGISTER 15-3:
WDTCON: WATCHDOG CONTROL REGISTER (ADDRESS 105h)
U-0
U-0
bit 7
bit 7-5
Unimplemented: Read as ‘0’
bit 4-1
WDTPS<3:0>: Watchdog Timer Period Select bits
Bit
Prescale
Value
Rate
0000 = 1:32
0001 = 1:64
0010 = 1:128
0011 = 1:256
0100 = 1:512
0101 = 1:1024
0110 = 1:2048
0111 = 1:4096
1000 = 1:8192
1001 = 1:16394
1010 = 1:32768
1011 = 1:65536
bit 0
SWDTEN: Software Enable/Disable for Watchdog Timer bit
1 = WDT is turned on
0 = WDT is turned off
Note 1: If WDTEN configuration bit = 1, then WDT is always enabled, irrespective of this
control bit. If WDTEN configuration bit = 0, then it is possible to turn WDT on/off with
this control bit.
Legend:
R = Readable bit
-n = Value at POR
TABLE 15-6:
SUMMARY OF WATCHDOG TIMER REGISTERS
Address
Name
Bit 7
81h,181h OPTION_REG
RBPU
2007h
Configuration bits
LVP
105h
WDTCON
Legend: Shaded cells are not used by the Watchdog Timer.
Note 1:
See Register 15-1 for operation of these bits.
DS30487C-page 142
U-0
R/W-0
R/W-1
WDTPS3
WDTPS2 WDTPS1 WDTPS0 SWDTEN
W = Writable bit
U = Unimplemented bit, read as ‘0’
‘1’ = Bit is set
‘0’ = Bit is cleared
Bit 6
Bit 5
Bit 4
Bit 3
INTEDG
T0CS
T0SE
PSA
BOREN
MCLRE
FOSC2
PWRTEN
WDTPS3 WDTPS2 WSTPS1 WDTPS0 SWDTEN
R/W-0
R/W-0
R/W-0
(1)
bit 0
(1)
x = Bit is unknown
Bit 2
Bit 1
Bit 0
PS2
PS1
PS0
WDTEN
FOSC1
FOSC0
 2005 Microchip Technology Inc.