Fujitsu F2MC-16LX Hardware Manual page 168

CHAPTER 6 LOW-POWER CONSUMPTION MODE
Pin states in external bus 8-bit data bus mode and non-multiplex 8-bit external bus mode
Table 6.7-5 "Pin states in external bus 8-bit data bus mode and non-multiplex 8-bit external bus
mode" summarizes pin states in the external bus 8-bit data bus mode and non-multiplex 6-bit
external bus mode.
Table 6.7-5 Pin states in external bus 8-bit data bus mode and non-multiplex 8-bit external bus mode
Pin name In sleep state
P07 to P00 Input disabled/
(D07 to D00) Output Hi-Z
P37 to P30
(A07 to A00)
Output state
(*1)
P47 to P40
(A15 to A08)
P27 to P20 Output state
(A23 to A16) (*1, *4)
Input disabled/
P57 (CLK) Output enabled
(*2, *4)
P56 (RDY)
P55 (HAK)
Maintains the
previous state
P54 (HRQ)
(*5)
P53 (WRH)
P52 (WRL) "H" output (*4)
P51 (RD) "H" output
P50 (ALE) "L" output
P17 to P10
P67 to P60
P77 to P70
Maintains the
previous state
(*5)
P97 to P91
PA3 to PA0
P90 (CS0)
Input enabled
P87 to P80
(*3)
*1: "Output state" means that the pin-drive transistors are set in a drive-enabled state, but internal circuits are stopped so that a fixed value, "H" or "L", is
output. When internal peripheral circuits are in operation and output functions are used, output varies except when reset. Output does not vary during a
reset.
*2: "Output enabled" means that the pin-drive transistors are set in a drive state and that internal circuit operations are enabled. Operational states therefore
are conveyed on the pins.
*3: Same as in other ports when used in the output state. "Input enabled" means that input functions are ready and require pull up/pull down or external input.
*4: The previous values are retained if used as an output port.
*5: The state output immediately before this mode was set is output as is. If it is input, input is disabled.
"Input disabled" means that operations of input gates located very close to the pins are enabled, but pin states cannot be accepted in internal operations
because internal circuits are not operating.
*6: "Input cutoff" means that operations of input gates located very close to the pins are disabled. "Output Hi-Z" means that the pin-drive transistors are
disabled and the pins are set to the high-impedance state.
152
When stopped
SPL = 0 SPL = 1
Input cutoff/
Output Hi-Z
Output state
(*1)
Output state
(*1, *4) Output Hi-Z (*4)
Input disabled/
Output enabled
(*1, *4)
Input cutoff/
Maintains the
previous state
Input cutoff/
(*5)
Output Hi-Z
(*6)
"H" output (*4)
Output Hi-Z (*4)
"H" output
"L" output
Input cutoff/
Maintains the
previous state
(*5)
Input enabled Input enabled
(*3) (*3)
In hold state When reset
Input disabled/
Output Hi-Z
Input disabled/
Output Hi-Z
Output state
(*1)
Input disabled/
Input disabled/ Input disabled/
Output enabled Output enabled
(*2, *4) (*2)
Input disabled
(*4)
"L" output
Input disabled/
Output Hi-Z
"I" input
Maintains the
previous state
(*5)
Input disabled/
"H" output
Input disabled/
Output Hi-Z
Output enabled
(*2)
Input disabled/
Output Hi-Z
Maintains the
previous state
(*5)
"H" output
Input disabled
Internal ROM access Internal ROM access
immediately after after external ROM
reset cancellation access
Output Hi-Z/ Output Hi-Z/
Input enabled Input enabled
Maintains the
Output state (*1)
previous address
CLK output CLK output
Output Hi-Z/ Output Hi-Z/
Input enabled Input enabled
"H" output "H" output
"L" output "L" output
Output Hi-Z/ Output Hi-Z/
Input enabled Input enabled