CHAPTER 11:Port Configuration
S6J3200 Series Hardware Manual Document Number: 002-04852 Rev. *G
213
3.6.
Port Status
3.6.1.
Hi-z Control
Traveo platform manual has description of System Special Setting Register (SYSC0_SPECFGR).
The [bit23] PSSPADCTRL: PSS-time port configuring bit should be configured as below.
−
0: Do not perform Hi-z control.
−
1: Perform Hi-z control.
Notes:
−
At RUN mode, if configured as Hi-z control, it doesn’t affect the port status immediately, but after
executing WFI instruction to update the profile registers, then it turns out Hi-z status during PSS
mode.
−
As opposite control from PSS to RUN, the port status of Hi-z will automatically be released
without reconfiguration of SYSC0_SPECFGR.PSSPADCTRL = 0.
3.6.2.
Port Status Hold during PSS Mode
All of the GPIO except ports in VCC3 area can be kept the port status during PSS mode by System
Special Setting Register (SYSC0_SPECFGR).
The [bit31] to [bit24] HOLDIO_PDx: HOLD data latch bit should be configured as below.
−
0: Do not retain control.
−
1: Retain control.
Notes:
−
During MCU RUN mode, I/O port status will be latched immediately after
SYSC0_SPECFGR.HOLDIO_PDx= 1 (Retain control) configured.
−
After SYSC0_SPECFGR.HOLDIO_PDx= 1,the status of followings will be latched. Please note
that PID is not included, that is, input data cannot be latched.
−
PPC_PCFGRijj POD, POE, PIL, PUE, PDE, ODR, NFE, and POF. (excluding PID: Input
data cannot be latched)
−
RIC_RESINx.PORTSEL and RESSEL
−
At turning from MCU PSS mode to RUN, the latched status will not be released automatically.
Configuration SYSC0_SPECFGR.HOLDIO_PDx = 0 should be necessary for releasing the
status.
Содержание S6J3200 Series
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