Datasheet

HB16 CONFIG2 REGEPI CONFIG REG
MODE = HB-16
HP16 CONFIG REG
MODE = NOMUX
MODE = MUXED
MODE = FIFO
BSEL = DON’T CARE
CSCFG = 2 CS
CSCFG = ALE + 2 CS
N/A
N/A
NO
NO
16
16
BSEL = NO
CSCFG = ALE
CSCFG = 1 CS
CSCFG = 2 CS
CSCFG = ALE + 2 CS
CSCFG = 3 CS
CSCFG = 4 CS
READY
SIGNAL
A0 – A11
ADDRESS
RANGE
A0 – A11
A0 – A10
A0 – A9
A0 – A20
A0 – A18
NO
YES
YES
YES
YES
YES
DATA
SIZE
16
16
16
16
16
16
BSEL = YES
CSCFG = ALE
CSCFG = 1 CS
CSCFG = 2 CS
CSCFG = ALE + 2 CS
CSCFG = 3 CS
CSCFG = 4 CS
A0 – A9
A0 – A9
A0 – A8
A0 – A7
A0 – A18
A0 – A16
NO
YES
YES
YES
YES
YES
16
16
16
16
16
16
BSEL = NO
CSCFG = ALE
CSCFG = 1 CS
CSCFG = 2 CS
CSCFG = ALE + 2 CS
A0 – A27
A0 – A27
A0 – A26
A0 – A25
NO
NO
NO
NO
16
16
16
16
BSEL = YES
CSCFG = ALE
CSCFG = 1 CS
CSCFG = 2 CS
CSCFG = ALE + 2 CS
A0 – A25
A0 – A25
A0 – A24
A0 – A23
NO
NO
NO
NO
16
16
16
16
F28M36P63C, F28M36P53C, F28M36H53C, F28M36H53B, F28M36H33C, F28M36H33B
www.ti.com SPRS825C –OCTOBER 2012–REVISED FEBRUARY 2014
7.1.4.3.2 EPI 16-Bit Host Bus (HB-16) Mode
The 16-Bit Host Bus (HB-16) Mode uses fewer address pins than the 8-Bit Host Bus (HB-8) Mode; hence,
more pins are available for data. The HB-16 Mode is also slower than the General-Purpose Mode in order
to accommodate older logic. The HB-16 Mode is selected with the MODE field of EPI Configuration
Register. Within the HB-16 Mode, two additional registers are used to select address/data muxing, byte
selects, chip selects, and other options. These registers are the HB-16 Configuration Register and the
HB-16 Configuration2 Register. See Figure 7-11 for a snapshot of HB-16 registers, modes, and features.
Figure 7-11. EPI 16-Bit Host Bus Mode
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