IC number:	4145F020 [45-GAYLE, 50020]
IC name:	Gayle
IC function:	Memory control, I/O card interface and IDE Hard Drive interface.
Related components:	Gary (predecessor), AA-Gayle (successor)

Component documentation

IC number	Manufacturer	Documentation
4145F020 [45-GAYLE, 50020]	CSG	Not available

Component versions

IC number	Package	CBM part number	CBM part description
4145F020 [45-GAYLE, 50020]	84-Pin PLCC	391155-01	Gayle Gate Array
4145F020 [45-GAYLE, 50020A]	84-Pin PLCC	391155-02

Positions

Amiga	Position	Package
A600	U5	PLCC

• Gayle is also used on the 3rd party Viper 520-33-CD turbo board for the A500.

Pinout

Pin	Type	Function group	Name	Signal name
				A600
1	Output	Card functions	PE12	PE12
2	Output	Card functions	PE5	PE5
3	Power	Power	GND1	GND
4	Output	Card functions	NOISE	NOISE via C711
5	Output	Card functions	CC_RESET	CC_RESET
6	Output	Card functions	_CC_ENA	_CC_ENA
7	Output	Card functions	_REG	_REG
8	Output	Card functions	_WE	_WE
9	Output	Card functions	_OE	_OE
10	Output	Control functions	E	E via E112
11	Output	Control functions	_FLASH	_FLASH
12	Input	Card functions	_IDE_IRQ	_IDE_IRQ
13..14	Output	Card functions	_IDE_CS(1).._IDE_CS(2)	_IDE_CS(1).._IDE_CS(2)
15	Output	Control functions	_SPARE_CS	_SPARE_CS
16	Output	Control functions	_NET_CS	_NET_CS
17	Output	Control functions	_RTC_CS	_RTS_CS
18	Output	Card functions	_IOWR	_IOWR
19	Output	Card functions	_IORD	_IORD
20	Power	Power	VCC1	VCC
21	Output	Control functions	_ROMEN	_ROMEN
22	Input	Control functions	C14M	14MHZ
23	Input	Control functions	CCK	CCK
24	Power	Power	GND2	GND
25	Input	Control functions	XRDY	unused
26	Input	Control functions	_OVR	unused
27	Output	Control functions	_OEL	connected to _EN of U21 and U22
28	Output	Control functions	_OEB	connected to _EN of U21 and U22
29	?	Control functions	_DBR	_DBR
30	Output	Control functions	_BLS	_BLS
31	?	Control functions	_REGEN	_REGEN
32	Output	Control functions	_RAMEN	_RAMEN
33	Input	Control functions	_AS	_AS
34	Input	Control functions	_UDS	_UDS
35	Input	Control functions	_LDS	_LDS
36	Input	Control functions	R_W	R_W
37	?	Control functions	_DTACK	_DTACK via R113
38	Input	Control functions	_BGACK	_BGACK
39	Input	Control functions	_HLT	_HLT
40	Input	Control functions	_RST	_RST
41..44	Input	Control functions	A12..A15	A12..A15
45	Power	Power	GND3	GND
46..53	Input	Control functions	A16..A23	A16..A23
54..61	I/O	Control functions	D15..D8	D15..D8
62	Power	Power	VCC2	VCC
63	Input	Floppy functions	_KBRESET	_KB_RESET
64	Output	Floppy functions	_DKWEB	_DKWEB
65	Output	Floppy functions	_DKWDB	_DDWDB
66	Power	Power	GND4	GND
67	Output	Floppy functions	_MTRON	_MTR0
68	Output	Floppy functions	_MTRX	_MTRX
69	Input	Floppy functions	DKWE	DKWE
70	Input	Floppy functions	_DKWD	_DKWD
71	Input	Floppy functions	_SEL	SEL0
72	Input	Floppy functions	_MTR	_MTR
73	Output	Control functions	_ODD_CIA	_ODD_CIA
74	Output	Control functions	_EVEN_CIA	_EVEN_CIA
75..76	Input	Card functions	_CC_CD(1).._CC_CD(2)	_CC_CD(1).._CC_CD(2)
77..78	Input	Card functions	_CC_BVD(1).._CC_BVD(2)	_CC_BVD(1).._CC_BVD(2)
79	Input	Card functions	_CC_WP	_CC_WP
80	Input	Card functions	_CC_BUSY	_CC_BUSY_IREQ
81	Input	Card functions	_WAIT	_WAIT
82	?	Control functions	_BEER	connected to _BEER of 68000 via R114
83	Output	Card functions	_INT6	_INT6
84	Output	Card functions	_INT2	_INT2