ADNS-4000 Avago Technologies US Inc., ADNS-4000 Datasheet - Page 23

• Manufacturer Part Number: ADNS-4000
• Description: SENSOR OPTICAL MOUSE LP 8DIP
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-4000

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIX_GRAB
Pixel Grabber Register
Access: Read/Write
Data Type:
USAGE:
NOTE: Any write operation into this register will reset the grabber to origin (pixel 0 position). The sensor should not be
moved before the 361 read operations are completed to ensure original data is grabbed to produce good (uncorrupted)
image.
19x19 Pixel Array Address Map – (View from top of sensor)
23
Last 360 341 322 303 284 265 246 227 208 189 170 151 132 113
342 323 304 285 266 247 228 209 190 171 152 133 114
343 324 305 286 267 248 229 210 191 172 153 134 115
344 325 306 287 268 249 230 211 192 173 154 135 116
345 326 307 288 269 250 231 212 193 174 155 136 117
346 327 308 289 270 251 232 213 194 175 156 137 118
347 328 309 290 271 252 233 214 195 176 157 138 119 100
348 329 310 291 272 253 234 215 196 177 158 139 120 101
349 330 311 292 273 254 235 216 197 178 159 140 121 102
350 331 312 293 274 255 236 217 198 179 160 141 122 103
351 332 313 294 275 256 237 218 199 180 161 142 123 104
352 333 314 295 276 257 238 219 200 181 162 143 124 105
353 334 315 296 277 258 239 220 201 182 163 144 125 106
354 335 316 297 278 259 240 221 202 183 164 145 126 107
355 336 317 298 279 260 241 222 203 184 165 146 127 108
356 337 318 299 280 261 242 223 204 185 166 147 128 109
357 338 319 300 281 262 243 224 205 186 167 148 129 110
358 339 320 301 282 263 244 225 206 187 168 149 130 111
359 340 321 302 283 264 245 226 207 188 169 150 131 112
Bit(s)
7
6:0
Field PG_VALID
Bit 7
Field Name
PG_VALID
PG[6:0]
Eight bit word.
The pixel grabber captures 1 pixel per frame. Bit-7 (MSB) of this register will be set to indicate
that the 7-bit pixel data (PG[6:0]) is valid for grabbing. In a 19x19 pixel array, it will take 361
read operations to grab all the pixels to form the complete image.
6
PG6
Address: 0x0b
Reset Value: 0x00
5
PG5
Description
Pixel Grabber Valid
Pixel Data
95
96
97
98
99
4
PG4
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
3
PG3
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
10
11
12
13
14
15
16
17
18
0 First
1
2
3
4
5
6
7
8
9
2
PG2
Button
5 SCLK
6 GND
7 VDD
8 MOSI
Top X-ray View of Mouse
Left
Positive X
1
PG1
LED
Button
Right
4 NCS
3 MOTION
2 LED
1 MISO
Pin 1
0
PG0
Positive Y