Motorola DSP56301 User Manual
Page 45
Host Interface (HI32)
Signals/Connections
2
-15
HP8
HAD8
HD0
HIO8
HP9
HAD9
HD1
HIO9
HP10
HAD10
HD2
HIO10
HP11
HAD11
HD3
HIO11
HP12
HAD12
HD4
HIO12
HP13
HAD13
HD5
HIO13
HP14
HAD14
HD6
HIO14
HP15
HAD15
HD7
HIO15
HP16
HC0/HBE0
HA0
HIO16
HP17
HC1/HBE1
HA1
HIO17
HP18
HC2/HBE2
HA2
HIO18
HP19
HC3/HBE3
Unused (must be pulled up or down)
HIO19
HP20
HTRDY
HDBEN
HIO20
HP21
HIRDY
HDBDR
HIO21
HP22
HDEVSEL
HSAK
HIO22
HP23
HLOCK
HBS (Schmitt trigger buffer on input— pull up
if not used)
HIO23
HP24
HPAR
HDAK (Schmitt trigger buffer on input— pull
up if not used)
disconnected
HP25
HPERR
HDRQ
disconnected
HP26
HGNT
HAEN
disconnected
HP27
HREQ HTA
disconnected
HP28
HSERR
HIRQ
disconnected
HP29
HSTOP
HWR/HRW (Schmitt trigger buffer on input)
disconnected
HP30
HIDSEL
HRD/HDS (Schmitt trigger buffer on input)
disconnected
HP31
HFRAME
Unused (must be pulled up)
disconnected
HP32
HCLK
Unused (must be pulled up)
HP33
HAD16
(pull up or down if not used)
HD8
disconnected
HP34
HAD17
(pull up or down if not used)
HD9
disconnected
HP35
HAD18
(pull up or down if not used)
HD10
disconnected
HP36
HAD19
(pull up or down if not used)
HD11
disconnected
HP37
HAD20
(pull up or down if not used)
HD12
disconnected
HP38
HAD21
(pull up or down if not used)
HD13
disconnected
HP39
HAD22
(pull up or down if not used)
HD14
disconnected
Table 2-11. Summary of HI32 Signals and Modes (Continued)
Signal
Name
PCI Mode
Enhanced Universal Bus Mode
Universal Bus Mode
GPIO Mode