22

PIX_GRAB

Address: 0x0b

Access: Read/Write

Reset Value: 0x00

Bit

76543210

Field

PG_VALID

PG6

PG5

PG4

PG3

PG2

PG1

PG0

Data Type: Eight bit word.

USAGE:

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.

Bit(s)

Field Name

Description

7

PG_VALID

Pixel Grabber Valid

6:0

PG[6:0]

Pixel Data

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.

19 x 19 Pixel Array Address Map – (Surface reference view from top of mouse)

342 323 304 285 266 247 228 209 190 171152 133 11495 76 57 38 190 First

343 324 305 286 267 248 229 210 191172 153 134 115

9677583920

1

344 325 306 287 268 249 230 211 192 173 154 135 116

9778594021

2

345 326 307 288 269 250 231 212 193 174 155 136 11798 79 60 41 22

3

346 327 308 289 270 251 232 213 194 175 156 137 11899 80 61 42 23

4

347 328 309 290 271 252 233 214 195 176 157 138 119 100 81 62 43 24

5

348 329 310291 272 253 234 215 196 177 158 139 120 101 82 63 44 25

6

349 330 311 292 273 254 235 216 197 178 159 140 121102 83 64 45 26

7

350 331 312 293 274 255 236 217 198 179 160 141122 103 84 65 46 27

8

351 332 313 294 275 256 237 218 199 180 161142 123 104 85 66 47 28

9

352 333 314 295 276 257 238 219 200 181162 143 124 105 86 67 48 29 10

353 334 315 296 277 258 239 220 201182 163 144 125 106 87 68 49 30 11

354 335 316 297 278 259 240 221 202 183 164 145 126 107 88 69 50 3112

355 336 317 298 279 260 241 222 203 184 165 146 127 108 89 70 51 32 13

356 337 318 299 280 261 242 223 204 185 166 147 128 109 90 71 52 33 14

357 338 319 300 281 262 243 224 205 186 167 148 129 11091 72 53 34 15

358 339 320 301 282 263 244 225 206 187 168 149 130 111 92 73 54 35 16

359 340 321 302 283 264 245 226 207 188 169 150 13111293 74 55 36 17

360 341 322 303 284 265 246 227 208 189 170 151132 11394 75 56 37 18

Last

+ve

Y

+ve X

Top X-ray View of Mouse

Pin 1

Left

Button

Right

Button

LED

8

7

6

5

4

3

2

1

PixArt Imaging Inc.

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PixArt Imaging Inc.