Port Group Cm - NEC V850ES/F 3-L Series User Manual

Chapter 2

2.5.10 Port group CM

Table 2-31
Table 2-32
Register Address
PMCCM FFFF F04C
H
PMCM FFFF F02C
H
PCM FFFF F00C
H
a)
not available for V850ES/FE3-L
Access
122
Port group CM is a 6-bit port group. In alternative mode, it comprises pins for
the following functions:
• CPU system clock output (CLKOUT)
Port group CM includes the following pins:
Port group CM: pin functions and buffer types
Pin functions in different modes
Port mode Alternative mode
(PMCnm = 0) (PMCnm = 1)
PCM0 –
PCM1 CLKOUT (O)
c
PCM2 –
c
PCM3 –
a)
A: analog noise filter; B: analog and digital noise filter; –: no noise filter
b)
S1: Schmitt trigger (30/70%); S2: Schmitt trigger (40/80%); x: CMOS
c)
Not available on V850ES/FE3-L
Port group CM: configuration registers
Initial
Used bits
value
00 X X
H
FF X X
H
undefined X X
All 8-bit registers can be accessed in 8-bit or 1-bit units.
User's Manual U18743EE1V2UM00
Pin
function
after reset
PCM0 (I)
PCM1 (I)
PCM2 (I)
PCM3 (I)
X X X
X X PMCM3
a
X X PCM3
Pin Functions
Port Noise Input
a
type filter charact.
C –
D0 –
C –
C –
X PMCCM1 X
a
PMCM2 PMCM1 PMCM0
a
PCM2 PCM1 PCM0
b
x
x
x
x