pca9504a NXP Semiconductors, pca9504a Datasheet - Page 24

• Manufacturer Part Number: pca9504a
• Description: Glue Chip 4
• Manufacturer: NXP Semiconductors

1. IDE_RSTDRV is a 5 V copy of PCIRST. PCIRST_OUT is a 3.3 V copy of PCIRST.
Philips Semiconductors
AUDIO-DISABLE
MUTE AUDIO CIRCUIT
HD SINGLE COLOR LED DRIVER
IDE RESET SIGNAL GENERATION AND PCRIST DRIVE STRENGTH
NOTE:
PWRGD SIGNAL GENERATION
FLUSH_OUT / INIT_OUT CIRCUIT
CLK_IN AND SEL_33_66
2004 May 11
CASE
Glue chip 4
1
2
3
4
5
6
PRIMARY_HD
A20M
X
X
1
1
0
0
AUD_EN
X
X
0
0
1
PCIRST
FPRST
0
0
1
1
0
1
0
0
1
1
GPO_FLUSH_CACHE
MUTE_AUD
SEL_33_66
Falling edge
Falling edge
Falling edge
Falling edge
0
1
0
1
1
1
INIT
SECONDARY_HD
0
1
0
1
1
0
X
X
IDE_RSTDRV
0
0
1
PWRGD_PS
FLUSH_OUT_CPU
PCIRST
0
1
0
1
24
0
1
0
1
0
1
0(for t1)
0(for t1)
Hi-Z
Hi-Z
Hi-Z
Hi-Z
1
FLUSH_OUT_FWH
0(for t1)
0(for t1)
SCSI
Hi-Z
Hi-Z
Hi-Z
Hi-Z
X
X
0
0
1
CLK_IN RATE
AUD_SHDN
66 MHz
33 MHz
1
0
PCIRST_OUT
PWRGD_3V
AUD_RST
0, Hi-Z, then 0 (delayed by
Hi-Z, 0 (delayed by t1-t,
t1-t, then active for 2*t)
0
0
0
1
0
1
0
0
0
1
then active for 2*t)
PCA9504A
HD_LED
INIT_OUT
HI–Z
0
0
0
0
Hi-Z
Hi-Z
0
0
Product data