Yamaha PSR-S750 Service Manual page 25

PIN OUTER
NAME I/O
NO. NO.
301 V22 HPDQM0 O SDRAM interface lower LL side data mask
302 V23 HPDQM1 O SDRAM interface lower LU side data mask
303 V24 HPDQM3 O SDRAM interface lower UU side data mask
304 V25 HPD23 I/O SDRAM lower data bus
305 W1 PTX6/CS6A/CE2B I/O Port/chip select/PCMCIA card select
306 W2 D15 I/O Data bus
307 W3 D7 I/O Data bus
308 W4 D14 I/O Data bus
309 W5 VSS - Ground
310 W21 VSS - Ground
311 W22 HPA7 O SDRAM interface address bus
312 W23 HPA15 O SDRAM interface address bus
313 W24 HPA16 O SDRAM interface address bus
314 W25 HPDQM2 O SDRAM interface lower UL side data mask
315 Y1 D6 I/O Data bus
316 Y2 D13 I/O Data bus
317 Y3 D5 I/O Data bus
318 Y4 D12 I/O Data bus
319 Y5 VSS - Ground
320 Y21 VSS - Ground
321 Y22 HPA2 O SDRAM interface address bus
322 Y23 HPA12 O SDRAM interface address bus
323 Y24 HPA13 O SDRAM interface address bus
324 Y25 HPA14 O SDRAM interface address bus
325 AA1 D4 I/O Data bus
326 AA2 D11 I/O Data bus
327 AA3 D10 I/O Data bus
328 AA4 D2 I/O Data bus
329 AA5 VSS - Ground
330 AA6 VSS - Ground
331 AA7 VSS - Ground
332 AA8 VCCQ - I/O power supply (3.3V)
333 AA9 VCCQ - I/O power supply (3.3V)
334 AA10 VCCQ - I/O power supply (3.3V)
335 AA11 VCCQ - I/O power supply (3.3V)
336 AA12 VSS - Ground
337 AA13 VSS - Ground
338 AA14 VSS - Ground
339 AA15 VCCQ - I/O power supply (3.3V)
340 AA16 VCCQ - I/O power supply (3.3V)
341 AA17 VCCQ - I/O power supply (3.3V)
342 AA18 VCCQ - I/O power supply (3.3V)
343 AA19 VSS - Ground
344 AA20 VSS - Ground
345 AA21 VSS - Ground
346 AA22 HPA9 O SDRAM interface address bus
347 AA23 HPA8 O SDRAM interface address bus
348 AA24 HPA10 O SDRAM interface address bus
349 AA25 HPA11 O SDRAM interface address bus
350 AB1 D9 I/O Data bus
351 AB2 D1 I/O Data bus
352 AB3 D8 I/O Data bus
353 AB4 WE1/WE O D15 to D8 write/PCMCIA memory write
354 AB5 A25/PTE7 I/O Address bus/port
355 AB6 A15 O Address bus
356 AB7 A21 O Address bus
357 AB8 A3 O Address bus
358 AB9 A11 O Address bus
359 AB10 A9 O Address bus
360 AB11 A5 O Address bus
361 AB12 IOIS16/PTC5 I/O PCMCIA-IF 16 bits/port
362 AB13 D31/HPD47 I/O Upper data bus/SDRAM upper data bus
363 AB14 D27/HPD43 I/O Upper data bus/SDRAM upper data bus
364 AB15 D26/HPD42 I/O Upper data bus/SDRAM upper data bus
365 AB16 D24/HPD40 I/O Upper data bus/SDRAM upper data bus
366 AB17 HPD0 I/O SDRAM lower data bus
367 AB18 HPD4 I/O SDRAM lower data bus
368 AB19 HPD9 I/O SDRAM lower data bus
369 AB20 HPD7 I/O SDRAM lower data bus
370 AB21 HPDQM7/PTC4 I/O SDRAM interface upper UU side data mask/port
371 AB22 HPA4 O SDRAM interface address bus
372 AB23 HPA5 O SDRAM interface address bus
373 AB24 HPA6 O SDRAM interface address bus
374 AB25 HPCLK O SDRAM interface synchronous clock
375 AC1 D0 I/O Data bus
PIN OUTER
FUNCTION
NO. NO.
376 AC2
377 AC3
378 AC4
379 AC5
380 AC6
381 AC7
382 AC8
383 AC9
384 AC10
385 AC11
386 AC12
387 AC13
388 AC14
389 AC15
390 AC16
391 AC17
392 AC18
393 AC19
394 AC20
395 AC21
396 AC22
397 AC23
398 AC24
399 AC25
400 AD1
401 AD2
402 AD3
403 AD4
404 AD5
405 AD6
406 AD7
407 AD8
408 AD9
409 AD10
410 AD11
411 AD12
412 AD13
413 AD14
414 AD15
415 AD16
416 AD17
417 AD18
418 AD19
419 AD20
420 AD21
421 AD22
422 AD23
423 AD24
424 AD25
425 AE1
426 AE2
427 AE3
428 AE4
429 AE5
430 AE6
431 AE7
432 AE8
433 AE9
434 AE10
435 AE11
436 AE12
437 AE13
438 AE14
439 AE15
440 AE16
441 AE17
442 AE18
443 AE19
444 AE20
445 AE21
446 AE22
447 AE23
448 AE24
449 AE25
NAME I/O
CS0 O Chip select
RD O Read signal
WE3/ICIOWR O D31 to D24 write/PCMCIA IO write
A23/PTE5 I/O Address bus/port
A19 O Address bus
A18 O Address bus
A13 O Address bus
A7 O Address bus
A4 O Address bus
A0 O Address bus
PTC7 I/O Port
D30/HPD46 I/O Upper data bus/SDRAM upper data bus
D18/HPD34 I/O Upper data bus/SDRAM upper data bus
D20/HPD36 I/O Upper data bus/SDRAM upper data bus
D22/HPD38 I/O Upper data bus/SDRAM upper data bus
HPD14 I/O SDRAM lower data bus
HPD12 I/O SDRAM lower data bus
HPD10 I/O SDRAM lower data bus
HPD8 I/O SDRAM lower data bus
HPDQM6/PTC3 O SDRAM interface upper UL side data mask
HPRAS O SDRAM interface row address
HPCS3 O SDRAM interface chip select
HPA1 O SDRAM interface address bus
HPA3 O SDRAM interface address bus
VSS - Ground
VSS - Ground
WE0 O D7 to D0 write
MD3 I Data bus width set
A22/PTE4 I/O Address bus/port
A17 O Address bus
A14 O Address bus
A10 O Address bus
A6 O Address bus
A1 O Address bus
CS5A/CE2A I/O Chip select/PCMCIA card select
PTE0/IRQ4/BS I/O Port/interrupt request/bus start
D17/HPD33 I/O Upper data bus/SDRAM upper data bus
D28/HPD44 I/O Upper data bus/SDRAM upper data bus
D21/HPD37 I/O Upper data bus/SDRAM upper data bus
D23/HPD39 I/O Upper data bus/SDRAM upper data bus
HPD1 I/O SDRAM lower data bus
HPD2 I/O SDRAM lower data bus
HPD11 I/O SDRAM lower data bus
HPD6 I/O SDRAM lower data bus
HPDQM5/PTC2 I/O SDRAM interface upper LU side data mask/port
HPCAS O SDRAM interface column address
HPCS2 O SDRAM interface chip select
VSS - Ground
VSS - Ground
VSS - Ground
VSS - Ground
WE2/ICIORD O D23 to D16 write/PCMCIA IO read
A24/PTE6 I/O Address bus/port
A20 O Address bus
A16 O Address bus
A12 O Address bus
A8 O Address bus
A2 O Address bus
CKO O System clock
PTE0/IRQ5 I/O Port/interrupt request
D16/HPD32 I/O Upper data bus/SDRAM upper data bus
D29/HPD45 I/O Upper data bus/SDRAM upper data bus
D19/HPD35 I/O Upper data bus/SDRAM upper data bus
D25/HPD41 I/O Upper data bus/SDRAM upper data bus
HPCLKD O SDRAM interface synchronous clock
HPD15 I/O SDRAM lower data bus
HPD13 I/O SDRAM lower data bus
HPD3 I/O SDRAM lower data bus
HPD5 I/O SDRAM lower data bus
HPDQM4/PTC0 I/O SDRAM interface upper LL side data bus/port
HPRDWR O SDRAM interface read/write
HPCKE O SDRAM interface clock enable
VSS - Ground
VSS - Ground
PSR-S750/PSR-S950
FUNCTION
25