isp1581 NXP Semiconductors, isp1581 Datasheet - Page 3

• Manufacturer Part Number: isp1581
• Description: Isp1581 Hi-speed Universal Serial Bus Peripheral Controller
• Manufacturer: NXP Semiconductors

Fig 1. Block diagram.
The direction of pins DREQ, DACK, DIOR and DIOW is determined by bit MASTER (DMA Hardware register) and bit ATA_MODE (DMA Configuration register).
12.0 k
V CC(5.0)
RESET
1.5
k
3.3 V
RREF
RPU
7
8
10
2
1, 23,
36, 42, 61
5 V
DGND
TRANSCEIVER
REGULATORS
Hi-Speed USB
to/from USB
POWER-ON
VOLTAGE
D
RESET
5
6
AGND
D
5
3
1
SoftConnect
V CCA(3.3)
3.3 V
3.3 V
4
V CC(3.3)
internal
reset
24, 37,
43, 58, 64
5
digital
supply
analog
supply
CONTROLLER
TEST
XTAL1
60
SYSTEM
PHILIPS
SIE/PIE
12 MHz
63
WAKEUP
62
XTAL2
59
MANAGEMENT
INTEGRATED
MEMORY
(8 KBYTE)
UNIT
RAM
*
Denotes shared pin usage
CONTROLLER
ISP1581
REGISTERS
HANDLER
HANDLER
MICRO-
DMA
DMA
DA0
19, 20, 21
CS0, CS1,
*
18, 17,
, DA1
CONTROLLER
*
INTERFACE
INTERFACE
, DA2
5
MICRO
DMA
DREQ, DACK,
DIOR, DIOW
12, 13,
14, 15
4
30 to 35, 38, 39
25, 29, 26, 27
004aaa153
44 to 57
40, 41,
20, 9
11
16
22
19
22
28
16
8
2
4
EOT
INTRQ
IORDY
DATA0 to DATA15
BUS_CONF
MODE0
READY
AD0 to AD7
INT
CS, ALE/A0, (R/W)/RD,
DS/WR
*
*
*
, MODE1
*