MC9S12XD256MAL Datasheet, PDF (790/1348 Pages) Freescale Semiconductor, Inc – Freescale’s Scalable Controller Area Network

Chapter 21 External Bus Interface (S12XEBIV2)
Table 21-3. Input Threshold Levels on External Signals
ITHRS
0
1
External Signal
DATA[15:8]
TAGHI, TAGLO
DATA[7:0]
EWAIT
DATA[15:8]
TAGHI, TAGLO
DATA[7:0]
EWAIT
NS
Standard
Standard
SS
NX
ES
EX
Standard
Standard
Standard
Reduced
if HDBE = 1
Reduced
Reduced
if EWAITE = 1
Reduced
Standard
Reduced
Standard
Reduced
Standard
Reduced
Reduced
if EWAITE = 1
ST
Standard
Reduced
Standard
Table 21-4. External Address Bus Size
ASIZ[4:0]
00000
00001
00010
00011
:
10110
10111
:
11111
Available External Address Lines
None
UDS
ADDR1, UDS
ADDR[2:1], UDS
:
ADDR[21:1], UDS
ADDR[22:1], UDS
MC9S12XDP512 Data Sheet, Rev. 2.21
792
Freescale Semiconductor