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DSP56857 Datasheet(PDF) 435 Page - Freescale Semiconductor, Inc

Part # DSP56857
Description  Digitial Signal Controller
PDF  662 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

DSP56857 Datasheet(HTML) 435 Page - Freescale Semiconductor, Inc

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Host Side Register Descriptions
Host Interface Eight (HI8), Rev. 4
Freescale Semiconductor
16-9
16.7 Host Side Register Descriptions
HI8 contains eight Host Side Interface registers outlined in Table 16-3.
Table 16-3.
HI8 Host Side Register Map (HI8 HOST SIDE_BASE = $1FFFD8)
Address Offset
Register Acronym
Register Name
Access
Type
Chapter Location
HLEND = 0
(Big Endian)
HLEND = 1
(Little Endian)
Base + $0
ICR
ICR
Interface Control
Read/Write
Section 16.9.1
Base + $1
CVR
CVR
Command Vector
Read/Write
Section 16.9.2
Base + $2
ISR
ISR
Interface Status
Read Only
Section 16.10.1
Base + $3
IVR
IVR
Interrupt Vector
Read/Write
Section 16.10.2
Base + $4
—
—
Unused
Read as 00
—
Base + $5
—
—
Unused
Read as 00
—
Base + $6
RXH/TXH
RXL/TXL
Receive/Transmit Bytes
Read/Write
Section 16.10.3
Base + $7
RXL/TXL
RXH/TXH
Transmit/Receive Bytes
Read/Write
Section 16.10.4
Add.
Offset
Register Name
7654321
0
$0
ICR
R
INIT
HM1
HM0
HF1
HF0 HLEND TREQ RREQ
W
$1
CVR
R
HC
HV6
HV5
HV4
HV3
HV2
HV1
HV0
W
$2
ISR
R
HREQ DMA
0
HF3
HF2 TRDY TXDE RXDF
W
$3
IVR
R
IV7
IV6
IV5
IV4
IV3
IV2
IV1
IV0
W
R
0
Read as 0
W
Reserved
Figure 16-3. DSC Host Side Register Map Summary



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