saa7893hl-02 NXP Semiconductors, saa7893hl-02 Datasheet - Page 15

• Manufacturer Part Number: saa7893hl-02
• Description: Saa7893hl Super Audio Media Player
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 7:
9397 750 10925
Product data
SAA7893HL name
H_DQ[11:8]
H_DQ[12]
H_DQ[13]
H_DQ[14]
H_DQ[15]
H_IRQn
H_procclock
sys_clk
H_RWn
H_WAITn
H_CSn
H_sel[0]
H_sel[1]
Fig 8. Write to or read from the SAA7893HL.
Host communication data mapping
H_DQ[15:0]
H_A[6:1]
H_A_sel
H_RWn
H_CSn
Type
I/O
I/O
I/O
I/O
I/O
O
IN
IN
IN
O
IN
IN
IN
8.2 SAD16_01/02 mode
The internal SAA7893HL address is differently composed in the different modes.
Reading and writing is always done on 16 bits (Hword) base. To save physical pins on
the SAA7893HL, the data bus is used to write the 16 MSB address bits, hereafter
called ‘the base address’ into the SAA7893HL. Therefore, to access an address
inside the SAA7893HL first these 16 MSB bits of the address must be written as a
base address for the SAA7893HL indicated by the H_A_sel line. Pin H_A_sel can be
mapped to a physical address pin of the host device.
SAD16_01;
SAD16_02
CPU_D(11:8)
CPU_D(12)
CPU_D(13)
CPU_D(14)
CPU_D(15)
IRQN
CPU_procclk
n.c.; sysclk
CPU_RWn
CPU_wait
CPU_CSn
0
logic 0: mode 1;
logic 1: mode 2
Fur_base = A(22:7)
write base address
A(22:7)
indication of an access to
the base address
Rev. 02 — 26 February 2003
SAD08
A(10:7)
n.c.
ASn
DSn
A(0)
IRQn
logic 0
PCI-clk
R/Wn
DSACKn
CS
logic 1
logic 0
…continued
locations Fur_A[22:1] = Fur_base&A(6:1)
D(15:0)
A(6:1)
write/read on SAA7893HL address
MAD16_01
AD(1512)
AD(16)
AD(17)
AD(18)
AD(19)
IRQN
logic 0
Sclk
RD_
ACK
XIO
logic 1
logic 1
MAD16_02
data(11:8)
data(12)
data(13)
data(14)
data(15)
IRQN
logic 1
sys_clk
RD_
HDTACKn
CSn
logic 1
logic 1
D(15:0)
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
A(6:1)
Super audio media player
SAA7893HL
MCE038
SAD16_03
LD(11:8)
LD(12)
LD(13)
LD(14)
LD(15)
IRQN
logic 1
sys_clk
RD_
n.c.
CSn
logic 1
logic 0
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