Apple Macintosh Processor-Direct Slot (PDS) connector

pinout (распиновка)

120 pin Euro-DIN connector at the motherboard

Cards in the PDS are accessed at 20MHz. This speed should let developers create PDS cards without using expensive components while still providing access to the processor bus. There are two locations in the memory map for PDS cards. Developers should see the "Cards and Drivers Manual" for information on creating PDS cards. This manual is available from APDA.

The cache connector in the Macintosh IIci may look like the Macintosh IIfx PDS connector, but the pinouts are vastly different.

Pin	Name	Description
A1	res	Reserved
A2	res	Reserved
A3	/BUSLOCK	Bus Clock
A4	/IRQ3	Interrupt Request 3
A5	/IPL2*	68030 IPL2
A6	/CIOUT*	68030 Cache inhibit out
A7	/STERM*	Sync.cycle termination
A8	/DSACK1*	68030 Data ack 1
A9	SIZ1	transfer size bit 1
A10	/BGACK*	68030 bus grant ack
A11	FC2	68030 function code 2
A12	/RESET*	System reset
A13	D0	Data bit 0
A14	D2	Data bit 2
A15	D5	Data bit 5
A16	D8	Data bit 8
A17	D10	Data bit 10
A18	D13	Data bit 13
A19	D16	Data bit 16
A20	D18	Data bit 18
A21	D21	Data bit 21
A22	D24	Data bit 24
A23	D26	Data bit 26
A24	D29	Data bit 29
A25	A31	address bit 31
A26	A29	address bit 29
A27	A26	address bit 26
A28	A23	address bit 23
A29	A21	address bit 21
A30	A18	address bit 18
A31	A15	address bit 15
A32	A13	address bit 13
A33	A10	address bit 10
A34	A7	address bit 7
A35	A5	address bit 5
A36	A2	address bit 2
A37	+5V	+5 VDC
A38	CPUCLOCK	CPU Clock
A39	GND	Ground
A40	-12V	-12 VDC
B1	res	Reserved
B2	GND	Ground
B3	/TM1A	?
B4	/IRQ2	Interrupt Request 2
B5	/IPL1*	68030 IPL1
B6	/DS*	68030 Data Strobe
B7	/CBACK*	cache burst ack
B8	/DSACK0*	68030 Data ack 0
B9	SIZ0	Transfer Size bit 0
B10	/BG*	68030 bus grant
B11	FC1	68030 function code 1
B12	/BERR*	Bus error
B13	+5V	+5 VDC
B14	D3	Data bit 3
B15	D6	Data bit 6
B16	GND	Ground
B17	D11	Data bit 11
B18	D14	Data bit 14
B19	+5V	+5 VDC
B20	D19	Data bit 19
B21	D22	Data bit 22
B22	GND	Ground
B23	D27	Data bit 27
B24	D30	Data bit 30
B25	+5V	+5 VDC
B26	A28	address bit 28
B27	A25	address bit 25
B28	GND	Ground
B29	A20	address bit 20
B30	A17	address bit 17
B31	+5V	+5 VDC
B32	A12	address bit 12
B33	A9	address bit 9
B34	GND	Ground
B35	A4	address bit 4
B36	A1	address bit 1
B37	+5V	+5 VDC
B38	ECLK	?
B39	GND	Ground
B40	-5V	-5 VDC
C1	PWROFF	Power Off?
C2	/NUBUS	?
C3	/TM0A	?
C4	/IRQ1	Interrupt Request 1
C5	/IPL0*	68030 IPL0
C6	/RMC*	68030 read modify cycle
C7	/CBREQ*	68030 cache burst req
C8	R/W*	68030 read write
C9	/AS*	68030 address strobe
C10	/BR*	68030 bus request
C11	FC0	68030 function code 0
C12	/HALT*	68030 Halt
C13	D1	Data bit 1
C14	D4	Data bit 4
C15	D7	Data bit 7
C16	D9	Data bit 9
C17	D12	Data bit 12
C18	D15	Data bit 15
C19	D17	Data bit 17
C20	D20	Data bit 20
C21	D23	Data bit 23
C22	D25	Data bit 25
C23	D28	Data bit 28
C24	D31	Data bit 31
C25	A30	address bit 30
C26	A27	address bit 27
C27	A24	address bit 24
C28	A22	address bit 22
C29	A19	address bit 19
C30	A16	address bit 16
C31	A14	address bit 14
C32	A11	address bit 11
C33	A8	address bit 8
C34	A6	address bit 6
C35	A3	address bit 3
C36	A0	address bit 0
C37	+5V	+5 VDC
C38	C16M	16 MHz Clock
C39	GND	Ground
C40	+12V	+12 VDC

Below a table with differences found in the Apple Macintosh IIfx computers:

Pin	Name	Description
A1	GND*	Ground
A2	/PDS.MASTER	?
A3	res	Reserved
A4	n.c.	Not connected
A38	Reserved	by Apple
B1	ECS	Early cycle start
B2	n.c.	Not connected
B3	/PDS.BG	?
B4	/IRQ15	?
B38	n.c.	Not connected
B39	/SLOT.E	68030 slot E replace in address map
C1	/PFW	Shutdown bit
C2	n.c.	Not connected
C3	/PDS.BR	Bus request
C4	/IRQ6	?
C38	CPUCLK*	20 MHz clock

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Pinouts.ru > Распиновки слотов расширения на материнской плате > Распиновка Apple Macintosh Processor-Direct Slot (PDS) connector использующего разъем 120 pin Euro-DIN Источник(и): Apple Tech Info Library 5744: Macintosh SE/30,IIfx: Processor-Direct Slot (PDS) Pinouts at Apple TIL homepage, from Hardware Book	Статус документа:	не подтвержденный
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