Toshiba H1 Series - Manual (Page 180)

TMP92CZ26A
92CZ26A-177
3.7.24 Port Z (PZ0 to PZ7)
Port Z0 to Z7 are 8-bit general-purpose I/O ports. Each bit can be set individually for
input or output. Resetting sets port Z0 to Z7 to input port and output latch to “0”.
In addition to functioning as general-purpose I/O port function, Port Z can also function
as communication for debug mode (EI_PODDATA, EI_SYNCLK, EI_PODREQ,
EI_REFCLK, EI_TRGIN, EI_COMRESET, EO_MCUDATA and EO_MCUREQ). These
functions are operated when it is started in debug mode. (There is not Function register in
this port. When DBGE is set to “0”, this port set to debug communication function.)
Figure 3.7.66 Port Z0 to Z5
Selector
A
B S
PZ0 (EI_PODDATA)
PZ1 (EI_SYNCLK)
PZ2 (EI_PODREQ)
PZ3 (EI_REFCLK)
PZ4 (EI_TRGIN)
PZ5 (EI_COMRESET)
PZ read
Direction
control
(on bit basis)
PZCR write
R
Output latch
PZ write
Reset
Internal dat
a
bus
Debug mode
EI_PODDATA
EI_SYNCLK
EI_PODREQ
EI_REFCLK
EI_TRGIN
EI_COMRESET