STRAP OPTION
Signal
Designation
Actual
Settings
Description
MD 45
MD 46
MD 47
MD 48
CPUCLK/HCKL Deskew Programming
Reserved2
Reserved2
Pull down
Pull up
Pull down
Pull up
HCLK between 64MHz and
133MHz
-
-
MD 50
Internal UART2 (see Section 3.1.4. )
Pull up
Enable
MD 51
Internal UART1 (see Section 3.1.4. )
Pull up
Enable
MD 52
Internal Kbd / Mouse (see Section 3.1.4. )
Pull up
Enable
MD 53
Internal Parallel Port (see Section 3.1.4. )
Pull up
Enable
TC1
Reserved2
Pull up
-
DACK_ENC[2]1
Reserved2
Pull up
-
DACK_ENC[1]1
Reserved2
Pull up
-
DACK_ENC[0]1
Reserved2
Pull up
-
Note1: Strap options on TC/PA[3] and DACK_ENC[2:0]/PA[2:0] are required for all the STPC Atlas Configurations (ISA,
PCMCIA, Local Bus).
Note2: Must be implemented.
Table 3-1. Typical Strap Option Implementation
Issue 1.0 - July 24, 2002
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