Intel 273246-002 manual Serial Ports, IDE Connector, Serial Port Connector Pinout J4

Hardware Reference

4.5.6Serial Ports

COM1 is the top connector. COM2 is the bottom connector.

Table 4-7. Serial Port Connector Pinout (J4)

Pin	Signal Name
1	DCD
2	Serial In (SIN)
3	Serial Out (SOUT)
4	DTR
5	GND
6	DSR
7	RTS
8	CTS
9	RI

4.5.7IDE Connector

Table 4-8. PCI IDE1 (JP3) and IDE2 (JP4) Connector

Pin	Signal Name	Pin	Signal Name
1	Reset IDE	2	Ground
3	Host Data 7	4	Host Data 8
5	Host Data 6	6	Host Data 9
7	Host Data 5	8	Host Data 10
9	Host Data 4	10	Host Data 11
11	Host Data 3	12	Host Data 12
13	Host Data 2	14	Host Data 13
15	Host Data 1	16	Host Data 14
17	Host Data 0	18	Host Data 15
19	Ground	20	Key
21	DRQ3	22	Ground
23	I/O Write#	24	Ground
25	I/O Read#	26	Ground
27	IOCHRDY	28	BALE
29	DACK3#	30	Ground
31	IRQ14	32	IOCS16#
33	Addr 1	34	Ground
35	Addr 0	36	Addr 2
37	Chip Select 0#	38	Chip Select 1#
39	Activity	40	Ground

4-6 Celeron™ Processor Development Kit Manual