ST40RA
5 System configuration
SYSCONF.SYS_CON2
[13:14] LMI_SDRAM_DATA_DRIVE
[15:16] LMI_SDRAM_ADD_DRIVE
[17:35] Reserved
36 EMPI_ENB[0]
37 EMPI_ENB[1]
38 EMPI_ENB[2]
39 EMPI_ENB[3]
40 MAILBOX_ENB
[41:43] Reserved
Functional pin use and behavior
SDRAM data and data strobe pad PROG 1:0 LVTTL
OP drive strength
00: 1x
01: 2x
10: 3x
11: 4x
Reset: 0
LMI address and control pad PROG 1:0 LVTTL OP
drive strength
00: 1x
01: 2x
10: 3x
11: 4x
Reset: 0
Enable EMPI channel 0 DREQ/DRACK/DRACK
alternate function
0: Disabled
1: NOTESCS1 remapped to EMPIDREQ0
NOTESCS2 remapped to EMPIDRAK0
EADDR26 remapped to EMPIDACK0
EADDR26 is only remapped when whilst the ST40RA
is acting as a bus slave
Enable EMPI channel 1 DREQ/DRACK/DRACK
alternate function
0: Disabled
1: NOTPREQ3 remapped to EMPIDREQ1
NOTPGNT3 remapped to EMPIDRAK1
EADDR25 remapped to EMPIDACK0
EADDR25 is only remapped when whilst the ST40RA
is acting as a bus slave
Enable EMPI channel 2 DREQ/DRACK/DRACK
alternate function
0: Disabled
1: DREQ0 remapped to EMPIDREQ2
DACK0 remapped to EMPIDACK2
DRAK0 remapped to EMPIDRAK2
Enable EMPI channel 2 DREQ/DRACK/DRACK
alternate function
0: Disabled
1: DREQ1 remapped to EMPIDREQ3
DACK1 remapped to EMPIDACK3
DRAK1 remapped to EMPIDRAK3
Enable mailbox interrupt alternate function
0:Disabled
1:NOTESC0 remapped to MBXINT
0x0018
RW
RW
RW
RW
RW
RW
RW
ADCS 7260755H
STMicroelectronics 28/94