Table 1.5-4 Pin Functions (4/5) - Fujitsu MB91F109 FR30 Hardware Manual

CHAPTER 1 OVERVIEW
Table 1.5-3 Pin Functions (3/5)
NO. Pin name
73 INT2/SC1/PE2
74 INT3/SC2/PE3

Table 1.5-4 Pin Functions (4/5)

NO. Pin name
75 DREQ0/PE4
76 DREQ1/PE5
77 DACK0/PE6
18
I/O circuit
format
F [INT2] Input of external interrupt request. This
input is used from time to time while the
corresponding external interrupt is enabled.
Therefore, it is needed to stop output by other
functions except when such output is performed
intentionally.
[SC1] UART1 clock I/O. Clock output can be used
when UART1 clock output is enabled.
[PE2] General-purpose I/O port. This function is
valid when UART1 clock output is disabled.
F [INT3] Input of external interrupt request. This
input is used from time to time while the
corresponding external interrupt is enabled.
Therefore, it is needed to stop output by other
functions except when such output is performed
intentionally.
[SC2] UART2 clock I/O. Clock output can be used
when UART2 clock output is enabled.
[PE3] General-purpose I/O port. This function is
valid when UART2 clock output is disabled.
I/O circuit
format
F [DREQ0, 1] Input of DMA external transfer request.
This input is used from time to time when this pin is
selected for the DMAC transfer cause. Therefore, it
is needed to stop output by other functions except
when such output is performed intentionally.
[PE4, 5] General-purpose I/O ports
F [DACK0] Output of DMAC external transfer
request acceptance (ch0). This function is valid
when the output of DMAC transfer request
acceptance is enabled.
[PE6] General-purpose I/O port. This function is
valid when the output of DMAC transfer request
acceptance or DACK0 output is disabled.
Function
Function