where is program counter(PC)

Hello Renesas team

While I was looking at specs for RL78 F23, I found that the majority of registers are located in SFRs.(RL78 Family User's Manual:Software , Table 3-3. List of Fixed SFRs )

By the way, is there a special reason why the specification doesn't say where the program counter is located?

Or is it written somewhere in the specification?