OMAP-L137
SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
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6.27 Host-Port Interface (UHPI)
6.27.1 HPI Device-Specific Information
The device includes a user-configurable 16-bit Host-port interface (HPI16). See the
OMAP-L137
Applications Processor DSP Peripherals Overview Reference Guide.
(
SPRUGA6
) for more details.
6.27.2 HPI Peripheral Register Description(s)
Table 6-100. HPI Control Registers
BYTE ADDRESS
ACRONYM
REGISTER DESCRIPTION
COMMENTS
0x01E1 0000
PID
Peripheral Identification Register
The CPU has read/write
0x01E1 0004
PWREMU_MGMT
HPI power and emulation management register
access to the
PWREMU_MGMT register.
0x01E1 0008
-
Reserved
0x01E1 000C
GPIO_EN
General Purpose IO Enable Register
0x01E1 0010
GPIO_DIR1
General Purpose IO Direction Register 1
0x01E1 0014
GPIO_DAT1
General Purpose IO Data Register 1
0x01E1 0018
GPIO_DIR2
General Purpose IO Direction Register 2
0x01E1 001C
GPIO_DAT2
General Purpose IO Data Register 2
0x01E1 0020
GPIO_DIR3
General Purpose IO Direction Register 3
0x01E1 0024
GPIO_DAT3
General Purpose IO Data Register 3
01E1 0028
-
Reserved
01E1 002C
-
Reserved
The Host and the CPU both
01E1 0030
HPIC
HPI control register
have read/write access to the
HPIC register.
HPIA
HPI address register
The Host has read/write
01E1 0034
(HPIAW)
(1)
(Write)
access to the HPIA registers.
The CPU has only read
HPIA
HPI address register
01E1 0038
access to the HPIA registers.
(HPIAR)
(1)
(Read)
01E1 000C - 01E1 07FF
-
Reserved
(1)
There are two 32-bit HPIA registers: HPIAR for read operations and HPIAW for write operations. The HPI can be configured such that
HPIAR and HPIAW act as a single 32-bit HPIA (single-HPIA mode) or as two separate 32-bit HPIAs (dual-HPIA mode) from the
perspective of the Host. The CPU can access HPIAW and HPIAR independently.
190
Peripheral Information and Electrical Specifications
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