Register Descriptions; Epi Configuration Register (Epicfg), Offset 0X000; Epi Configuration Register (Epicfg) [Offset 0X000]; Epi Configuration Register (Epicfg) Field Descriptions - Texas Instruments Concerto F28M36 Series Technical Reference Manual

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17.11 Register Descriptions

This section lists and describes the EPI registers, in numerical order by address offset.

17.11.1 EPI Configuration Register (EPICFG), offset 0x000

NOTE: The MODE field determines which configuration register is accessed for offsets 0x010 and
0x014. Any write to the EPICFG register resets the register contents at offsets 0x010 and
0x014.
The configuration register is used to enable the block, select a mode, and select the basic pin use (based
on the mode). Note that attempting to program an undefined MODE field clears the BLKEN bit and
disables the EPI controller.
31
15
Reserved
R-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 17-14. EPI Configuration Register (EPICFG) Field Descriptions
Bit
Field
31-9
Reserved
8
INTDIV
7-5
Reserved
4
BLKEN
3-0
MODE
0x3-0xF Reserved
SPRUHE8E – October 2012 – Revised November 2019
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Figure 17-28. EPI Configuration Register (EPICFG) [offset 0x000]
9
8
INTDIV
R/W-0
Value
Description
Reserved
Integer Clock Divider Enable
0
EPIBAUD register values create formula clock divide.
1
EPIBAUD register values create integer clock divide.
Reserved
Block Enable
0
The EPI controller is disabled.
1
The EPI controller is enabled.
Mode Select
0x0
General Purpose
General-Purpose mode. Control, address, and data pins are configured using the EPIGPCFG and
EPIGPCFG2 registers.
0x1
SDRAM
Supports SDR SDRAM. Control, address, and data pins are configured using the EPISDRAMCFG
register.
0x2
8-Bit Host-Bus (HB8)
Host-bus 8-bit interface (also known as the MCU interface). Control, address, and data pins are
configured using the EPIHB8CFG and EPIHB8CFG2 registers.
0x3
16-Bit Host-Bus (HB16)
Host-bus 16-bit interface (standard SRAM). Control, address, and data pins are configured using
the EPIHB16CFG and EPIHB16CFG2 registers.
Copyright © 2012–2019, Texas Instruments Incorporated
Reserved
R-0
7
5
4
Reserved
BLKEN
R-0
R/W-0
Register Descriptions
3
MODE
R/W-0x0
External Peripheral Interface (EPI)
16
0
1265

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