dsp56857 Freescale Semiconductor, Inc, dsp56857 Datasheet - Page 13

• Manufacturer Part Number: dsp56857
• Description: Dsp56857 Digital Signal Controller
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
Pin No.
Table 3-1 56857 Signal and Package Information for the 100-pin LQFP (Continued)
63
64
65
83
84
Signal Name
GPIOB10
GPIOB11
GPIOB12
GPIOB13
GPIOB9
HRWB
HWR
HRD
HDS
HCS
HA1
HA2
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input
Input
Input
Input
Input
Input
Input
Type
56857 Technical Data, Rev. 6
Host Address (HA1)—This input provides the address selection for HI
registers.
This pin is disconnected internally.
Port B GPIO (9)—This pin is a General Purpose I/O (GPIO) pin when not
configured for host port usage.
Host Address (HA2)—This input provides the address selection for HI
registers.
This pin is disconnected internally.
Port B GPIO (10)—This pin is a General Purpose I/O (GPIO) pin when
not configured for host port usage.
Host Read/Write (HRWB)—When the HI08 is programmed to interface
to a single-data-strobe host bus and the HI function is selected, this
signal is the Read/Write input.
These pins are disconnected internally.
Host Read Data (HRD)—This signal is the Read Data input when the
HI08 is programmed to interface to a double-data-strobe host bus and the
HI function is selected.
Port B GPIO (11) —This pin is a General Purpose I/O (GPIO) pin when
not configured for host port usage.
Host Data Strobe (HDS)—When the HI08 is programmed to interface to
a single-data-strobe host bus and the HI function is selected, this input
enables a data transfer on the HI when HCS is asserted.
These pins are disconnected internally.
Host Write Enable (HWR)—This signal is the Write Data input when the
HI08 is programmed to interface to a double-data-strobe host bus and the
HI function is selected.
Port B GPIO (12)—This pin is a General Purpose I/O (GPIO) pin when
not configured for host port usage.
Host Chip Select (HCS)—This input is the chip select input for the Host
Interface.
These pins are disconnected internally.
Port B GPIO (13)—This pin is a General Purpose I/O (GPIO) pin when
not configured for host port usage.
Description
Introduction
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